Collections

Media

ESO 1. Science

1. The Earth in the Universe
Sputnik news reel

Sputnik news reel

Watch this news reel from Universal Studios on the launch of Sputnik in 1957, the first man-made satellite ever put into orbit.

Apollo 11 mission highlights

Apollo 11 mission highlights

Watch that small step for a man, but giant leap for Mankind.

Apollo lunar landings

Apollo lunar landings

The 6 lunar landings of the Apollo Mission seen simultaneously from the same perspective as the astronauts.

Audio file from the Apollo 13 mission

Audio file from the Apollo 13 mission

Listen to one of the most frightening moments ever lived in space.

Milky Way

Milky Way

Find out more about the Milky Way galaxy.

Produced by Cassiopeia Project

Really big stars

Really big stars

Want to see something really big? Well watch this. Check out how our own moon compares to the largest star we currently know about, VY Canis Majoris.

Produced by Cassiopeia Project

Planets and stars to Scale

Planets and stars to Scale

Watch from the smallest planet in the Solar System to the biggest known star.

The known Universe

The known Universe

From the Himalayas through our atmosphere and the inky black of space to the afterglow of the Big Bang.

Source: American Museum of Natural History

Sol

Sol

Find out more about the Sun and its future.

Produced by Cassiopeia Project

Pluto

Pluto

Find out more about the dwarf planet Pluto.

Produced by Cassiopeia Project

Mercury

Mercury

Find out more about the planet Mercury.

Produced by Cassiopeia Project

Venus

Venus

Find out more about the planet Venus.

Produced by Cassiopeia Project

Mars

Mars

Find out more about the planet Mars.

Produced by Cassiopeia Project

Jupiter

Jupiter

Find out more about the planet Jupiter.

Produced by Cassiopeia Project

Saturn

Saturn

Find out more about the planet Saturn.

Produced by Cassiopeia Project

Uranus

Uranus

Find out more about the planet Uranus.

Produced by Cassiopeia Project

Neptune

Neptune

Find out more about the planet Neptune.

Produced by Cassiopeia Project

Earth

Earth

Find out more about the planet Earth.

Produced by Cassiopeia Project

Earth rise from the Moon

Earth rise from the Moon

Recorded in April 2008 by the Kaguya (Selene) spaceprobe from the Japan Aerospace Exploration Agency.

Reasons for seasons

Reasons for seasons

Discover why winter and summer have nothing to do with the proximity of the Earth to the Sun in this Uncommon Knowledge podcast.

Streamed from the Uncommon Knowledge podcast

Total lunar eclipse

Total lunar eclipse

Total lunar eclipse of February 20, 2008, in slow motion.

2. Matter
Eureka! - Volume and density

Eureka! - Volume and density

Learn how a "car crusher machine" can help your father to reduce both the volume and the density of his car.

Produced by TVOntario

Meet the elements

Meet the elements

Sing and learn the properties of some chief elements.

The elements song, by Tom Lehrer

The elements song, by Tom Lehrer

Exhaustive and exhausting, yet funny, recitation of all the know elements to the date of the recording.

Mixtures and compounds

Mixtures and compounds

Learn the difference!

Eureka! - Atoms

Eureka! - Atoms

Learn how matter is made up of molecules built with very different types of smaller particles: the atoms.

Produced by TVOntario

Eureka! - Electrons

Eureka! - Electrons

Learn that atoms are made up of even tinier particles and a lot of empty space.

Produced by TVOntario

Eureka! - Molecules in solids

Eureka! - Molecules in solids

Maybe you thought they weren't moving… but see their dance!

Produced by TVOntario

Eureka! - Molecules in liquids

Eureka! - Molecules in liquids

These ones move even faster.

Produced by TVOntario

Eureka! - Evaporation and condensation

Eureka! - Evaporation and condensation

Learn how are the molecules in a gas, and what can make liquids turn into gases… and viceversa.

Produced by TVOntario

Eureka! - Expansion and contraction

Eureka! - Expansion and contraction

And now learn that that was because the heat affects the movement of the molecules of the objects.

Produced by TVOntario

3. The Atmosphere and the Weather
Jake's attic - Can implosion

Jake's attic - Can implosion

Watch a soda can being crushed by air pressure.

Jake's attic - Balloon in a bottle

Jake's attic - Balloon in a bottle

See how atmospheric pressure pushes a ballon into a bottle.

4. The Water and the Hydrosphere
Ocean currents

Ocean currents

Learn which are the major ocean currents and how they circulate.

7. Prokaryotes, Protozoa, Algae and Fungi
Bacteria

Bacteria

You might not see them, but they're there.

Bacterian growth

Bacterian growth

Watch a colony of bacteria multiplying.

Iron will to live for Antarctic microbes

Iron will to live for Antarctic microbes

A study in the journal Science shows that microbes have survived under glaciers in Antarctica making do with nothing but sulfates and iron from the bedrock.

Streamed from Scientific American

Microscopic world I

Microscopic world I

Beautiful movie showing algae, protozoa and small invertebrates dancing in a lake.

Small world

Small world

Much the same thing as the previous one. Protozoa and lots of algae.

Phagocytosis (I)

Phagocytosis (I)

Amoeba gobbles algae cells.

Phagocytosis (II)

Phagocytosis (II)

Amoeba gobbles paramecium.

Cilia and flagella

Cilia and flagella

Narrated clip explaining protozoan movement.

Fungi

Fungi

Fungi in all their beautiness.

Mushroom madness

Mushroom madness

Extracted from the BBC/NHK documentary Planet Earth.

Blue oyster mushrooms growing

Blue oyster mushrooms growing

Beautiful time-lapse movie showing the growth of the many mushrooms produced by a single fungus.

Mould on rotting apple

Mould on rotting apple

Another time-lapse movie showing the not-so-riveting growth of these inferior fungi.

Fungi: the good, the bad and the edible

Fungi: the good, the bad and the edible

Though fungi are essential in the production of bread, beer and cheese, they can also be a threat to human life in the form of infection and deadly disease. Fungi experts discuss the diverse nature of this underappreciated kingdom.

Streamed from Science Friday

8. The Plant Kingdom
Adaptations of plants

Adaptations of plants

Learn how plants have evolved to perform efficiently the vital functions.

Produced by Britannica.com

Adaptations of leaves

Adaptations of leaves

Watch how the plants' leaves can be strongly modified to help improve a plant's adaptation to an specific environment or lifestyle.

An Assignment Discovery video

Swedish spruce is world's oldest tree

Swedish spruce is world's oldest tree

A 60-second Science podcast.

Streamed from Scientific American

9. The Animal Kingdom
Amazing octopus camouflage

Amazing octopus camouflage

It is not a ghost, although it certainly looks like it.

Life of a monarch butterfly

Life of a monarch butterfly

From the caterpillar to the imago.

Monarch butterfly caterpillar pupating

Monarch butterfly caterpillar pupating

Watch the monarch butterfly caterpillar forming the chrysalis.

Painted lady butterflies

Painted lady butterflies

Later life stages of several painted lady butterflies: caterpillar, pupa and imago.

Caterpillars

Caterpillars

See how amazingly these vulnerable creatures manage to survive.

Ants

Ants

Watch the most stunning ants' nest that you could ever think of.

Sea turtles and their hatchlings

Sea turtles and their hatchlings

Watch how sea turtles lay their eggs in the sand and how their hatchlings must immediately make it to the water.

Produced by Britannica.com

Galapagos tortoises

Galapagos tortoises

Tortoises of the Galapagos islands.

Produced by Britannica.com

Smarter city birds

Smarter city birds

Biologists are comparing country bumpkins and city slickers... among birds!

Produced by ScienCentral

Partnerships

Partnerships

Watch how patience and interspecific tolerance bring about common benefits for mammals and birds.

Primate not so innocent

Primate not so innocent

A recent study shows that chimps can make long-term plans, because one was found saving up stones to throw at people.

Streamed from Scientific American

ESO 2. Science

1. Forces and Movements
Eureka! - Inertia

Eureka! - Inertia

Objects like to remain the way the are: static or moving. That laziness is called inertia. Learn about it.

Produced by TVOntario

Eureka! - Mass

Eureka! - Mass

Learn how the inertia of a body relates to its mass.

Produced by TVOntario

Eureka! - Forces and speed

Eureka! - Forces and speed

Learn how the force needed to move an object depends on the mass of the object and how much you want to increase its speed.

Produced by TVOntario

Eureka! - Acceleration (I)

Eureka! - Acceleration (I)

That was not quite true. In fact, the force depends on the mass of the object to move and how fast you want to increase its speed. Watch it.

Produced by TVOntario

Eureka! - Acceleration (II)

Eureka! - Acceleration (II)

Let a locomotive driver show to you that acceleration is how much the speed of an object changes every second.

Produced by TVOntario

Eureka! - Gravity

Eureka! - Gravity

The gravitational force and Newton's apple.

Produced by TVOntario

Eureka! - Weight

Eureka! - Weight

Learn that you can easily lose weight without diets - you only have to go to the Moon!

Produced by TVOntario

Theory of gravity tested on the Moon

Theory of gravity tested on the Moon

Drop a hammer and a feather on the Moon, and which one will hit the surface first?

Eureka! - Buoyancy

Eureka! - Buoyancy

Learn that the buoyancy of an object is the result of a balance between two forces: the weight of the object and the weight of the displaced fluid.

Produced by TVOntario

2. Energy
Eureka! - Work

Eureka! - Work

Energy is the ability to do work, so it' time to learn what work is and how it relates to force.

Produced by TVOntario

Eureka! - Kinetic energy

Eureka! - Kinetic energy

Kinetic energy explained through billiard balls.

Produced by TVOntario

Eureka! - Potential energy

Eureka! - Potential energy

Let David and Goliath explain to you what potential energy is and how can it be transformed into kinetic energy.

Produced by TVOntario

Wind turbines make bat lungs explode

Wind turbines make bat lungs explode

Researchers at the University of Calgary have found out why bats have been dying near wind turbines.

Produced by New Scientist

Old energy source wood be new alternative

Old energy source wood be new alternative

A recent scientific paper praises the energetic potential of an old resource: wood.

Streamed from Scientific American

A truly green source of energy: algae

A truly green source of energy: algae

Ira Flatow and guests discuss the future of algae-based energy, including plans for a new algae-fueled power plant in Venice, Italy, and biologist Jerry Brand explains why biotech companies are taking samples from his extensive algae collection.

Streamed from Science Friday

3. Heat and Temperature
Eureka! - Temperature vs. heat

Eureka! - Temperature vs. heat

Learn the difference between "degree of hotness" and "quantity of hotness".

Produced by TVOntario

Eureka! - Measuring temperature

Eureka! - Measuring temperature

You need something better than just "too cold" or "too hot", don't you? Learn how Anders Celsius came up with the solution…

Produced by TVOntario

Eureka! - Heat as energy

Eureka! - Heat as energy

Learn that heat is just another kind of energy, and can be transmitted.

Produced by TVOntario

Temperature

Temperature

Can an individual atom be hot or cold? Can it even have a temperature? Find out now!

Produced by Cassiopeia Project

Temperature vs. heat

Temperature vs. heat

Find out the difference between heat and temperature in this Uncommon Knowledge podcast.

Streamed from the Uncommon Knowledge podcast

Eureka! - Conduction

Eureka! - Conduction

Learn that heat can be transmitted by the vibration of an atom (or molecules) to its neighbours… which is what makes metals be so good heat conductors.

Produced by TVOntario

Eureka! - Convection

Eureka! - Convection

Learn that heat can also be conveyed by fluids thanks to the principle of buoyancy.

Produced by TVOntario

Eureka! - Radiation

Eureka! - Radiation

And lastly, heat can also travel in the form of waves.

Produced by TVOntario

4. Light
Eureka! - Radiation spectrum

Eureka! - Radiation spectrum

Learn what makes tomatoes be red and black colour warmer than white.

Produced by TVOntario

5. Sound
Sound waves on fire

Sound waves on fire

Pump some flammable gas into one side of a tube, attach a speaker to the other side, and watch what happens to the columns of flames that issue from small holes along the top.

6. Chemical Changes
Chemical party

Chemical party

Watch almost real chemical elements interacting live.

9. Interaction and Coordination in Living Beings
Butterfly larvae trick ants with scent and sound

Butterfly larvae trick ants with scent and sound

Ecologists report in Science how a species of butterfly tricks red ants into caring for them. The larvae chemically "smell" like ants, and can imitate noises that the ant queens make.

Streamed from npr.org

10. Reproduction in Living Beings
The hidden beauty of pollination

The hidden beauty of pollination

Pollination: it's vital to life on Earth, but largely unseen by the human eye. Filmmaker Louie Schwartzberg shows us the intricate world of pollen and pollinators with gorgeous high-speed images from his film "Wings of Life".

Created by Louie Schwartzberg

Methods of pollination

Methods of pollination

Learn how plants manage to be pollinated and to avoid self-pollination.

Produced by Britannica.com

Wild orchid wasp mimic

Wild orchid wasp mimic

This incredible plant dupes wasps into thinking they're mating, while loading them with pollen.

BBC Worldwide

Fruit development

Fruit development

A fruit consists of seeds enclosed in a mature ovary of a flowering plant. The wall of the ovary in an apple hardened and the supporting stem become fleshy and grows up and around the ovary.

Corn growing

Corn growing

Watch seeds of corn developing roots and leaves.

Asexual reproduction in plants

Asexual reproduction in plants

Learn about the several means plants have to reproduce asexually.

Produced by Britannica.com

11. The Ecosphere and the Ecosystems
Trash and recycle

Trash and recycle

A funny and silly explanation of recycling by Steve Trash.

Electronic waste recycling in India

Electronic waste recycling in India

Documentary by Greenpeace showing the harm that computer recycling in India is inflicting on workers' health. Underlines why recycling needs to be carefully regulated.

ESO 3. Biology and Geology

1. Organization of Living Matter
Carbohydrates

Carbohydrates

Great video that makes use of the Periodic Table to explain how a glucose molecule, the primary component of many bigger carbohydrates, is chemically constructed.

Produced by Cassiopeia Project

Lipids

Lipids

See how a triglicerid, the most typical lipid molecule, is built from three fatty acids and one molecule of glycerine.

Produced by Cassiopeia Project

Proteins

Proteins

Learn how a protein molecule is built up until it is fully functional.

Produced by Cassiopeia Project

DNA Structure

DNA Structure

Learn how a molecule of DNA is structured.

DNA

DNA

Learn the structure, organisation and function of DNA.

Produced by Cassiopeia Project

DNA wrapping and replication

DNA wrapping and replication

The first part shows the DNA coiling four consecutive times to make up the chromosomes. The second shows the process of DNA duplication before cell division.

Chromosomes

Chromosomes

How many chromosomes do humans have? How about a dog? Check out this video to find out more about chromosomes.

Produced by Cassiopeia Project

3D human anatomy

3D human anatomy

3D visualization from actual CAT scan and MRI data of living subjects.

Produced by Edmond Alexander

Male anatomy

Male anatomy

A 360 degree view of the male anatomy.

Produced by Cassiopeia Project

Female anatomy

Female anatomy

A 360 degree view of the male anatomy.

Produced by Cassiopeia Project

2. Nutrition in Humans
Digestive system

Digestive system

Short introductory video on the function of the digestive system.

Digestion

Digestion

Watch the digestion process.

Respiratory system (I)

Respiratory system (I)

Respiration 3D Medical Animation, with very detailed information.

Produced by Argosy Medical Animation

Respiratory system (II)

Respiratory system (II)

The mechanism of breathing and the anatomy of the organs that carry out this activity, brought vividly to life through revealing animation and x-ray motion pictures.

Produced by the Phoenix Learning Group

Respiratory system (III)

Respiratory system (III)

Learn about how the blood oxygenates and deoxygenates.

Gas exchange

Gas exchange

Learn how gas exchange is performed in the alveoli.

3D view of diaphragm

3D view of diaphragm

View of diaphragm during respiration.

Produced by 3D-Yoga.com

Circulatory system (I)

Circulatory system (I)

Learn about the journey of the blood throughout the body.

Circulatory system (II)

Circulatory system (II)

Watch the path of a red blood cell around the body.

Produced by Britannica.com

Rotating heart

Rotating heart

Watch the heart's valves working in a translucent rotating heart.

The work of the heart (I)

The work of the heart (I)

Learn about the heart's pumping action, its valves, chambers, movements and function.

The work of the heart (II)

The work of the heart (II)

Learn how the pumping action of the heart is triggered.

Urinary system

Urinary system

Overall view on the roles of the different organs in the urinary system.

The function of the nephron

The function of the nephron

Learn how urine is progressively produced in the different parts of every nephron.

3. Interaction in Humans
Neurones

Neurones

Introductory video to the role of neurones in the human body.

Produced by Cassiopeia Project

Nervous system (I)

Nervous system (I)

Short introductory video on the function of the nervous system.

Nervous system (II)

Nervous system (II)

Explore the nervous system through a series of animated sequences that trace the structure of neurons and illuminate biochemical impulses.

Produced by The Phoenix Learning Group

Backbone anatomy

Backbone anatomy

Cervical spine and intervertebral disc anatomy.

Caffeine

Caffeine

Learn how caffeine tricks your brain into thinking it is not tired when it really is.

Streamed from the Uncommon Knowledge podcast

Skin, nails and hair

Skin, nails and hair

Short introductory video on the function of the skin, the nails and the hair.

Seeing

Seeing

Short introductory video on the process of seeing.

Hearing and balance (I)

Hearing and balance (I)

Short introductory video on the senses of hearing and equilibrium.

Hearing and balance (II)

Hearing and balance (II)

Hearing and equilibrium explained through drawings.

Smelling and tasting

Smelling and tasting

Short introductory video on the senses of smelling and tasting.

Endocrine system

Endocrine system

Short introductory video on the function of the endocrine system and the hormones.

Motor apparatus

Motor apparatus

Short introductory video on the function and components of the motor apparatus.

4. Reproduction in Humans
Female reproductive system

Female reproductive system

The female reproductive system with some detail.

Human ovulation

Human ovulation

Human ovulation captured on film for the first time.

The Menstrual cycle

The Menstrual cycle

Learn how hormones control the menstrual cycle.

Produced by How the Body Works

Reproduction

Reproduction

Short introductory video to the reproductive process in humans.

Conception

Conception

See how conception takes place.

Cell to embryo

Cell to embryo

Watch the amazing transformation of a fertilized egg into an 8-week embryo in this video made from magnetic resonance images.

University of Michigan

From conception to the fifth month

From conception to the fifth month

Detailed video on the events of the first months of fetal development.

From weeks 6 to 12

From weeks 6 to 12

Animation showing the changes between the sixth and the twelfth week of gestation.

Development of the fetus (I)

Development of the fetus (I)

Stage by stage description of the changes during human fetal development.

Development of the fetus (II)

Development of the fetus (II)

Stage by stage depiction of the human fetal development.

Childbirth (I)

Childbirth (I)

Animation of a normal vaginal birth.

Childbirth (II)

Childbirth (II)

Detailed explanation on how a typical childbirth takes place.

Pill may change attraction

Pill may change attraction

In a recent study researchers note that the birth control pill may change a woman's choice in whom she finds attractive.

Streamed from Scientific American

Childbirth the Monty Python's way

Childbirth the Monty Python's way

Fragment from the Monty Python's film "The meaning of Life"… with the very expensive machine that goes "ping".

Transcript

5. Health and Disease
Infection fighters

Infection fighters

Short introductory video on the immune system and the skin as infection fighters of our body.

White blood cell chasing a bacterium

White blood cell chasing a bacterium

Watch a neutrophil white blood cell going after a bacterium in the blood.

Less fungus among us warm-blooded

Less fungus among us warm-blooded

A recent study finds that one major advantage of being warm-blooded is that the great majority of fungi cannot infect us.

Streamed from Scientific American

Fruit juices block some drugs

Fruit juices block some drugs

A recent discovery points out that drinking some fruit juices might have some unexpected side-effects.

Streamed from Scientific American

7. Rocks
Rocks

Rocks

An overview of the rock transformation processes on our planet.

Produced by Cassiopeia Project

ESO 4. Biology and Geology

1. Cellular Functions
The cell membrane

The cell membrane

Learn the structure, behaviour and biological meaning of the cell's plasma membrane.

Diffusion

Diffusion

Learn how the molecules of fluids move freely, and which force drives their motion.

Osmosis

Osmosis

Learn how the process of osmosis can even out the concentrations of two solutions to either side of a partially permeable membrane.

Passive transport

Passive transport

Learn how some proteins of the plasma membrane can allow a free movement of molecules in and out the cell.

Active transport (I)

Active transport (I)

Learn how some proteins of the plasma membrane can pump certain substances through the membrane against the concentration gradient with some contribution of energy.

Active transport (II)

Active transport (II)

A more detailed view of the process of active transport through the Na/K pump example.

Endocytosis and exocytosis (I)

Endocytosis and exocytosis (I)

Learn how plasma membrane sacs can help to transport materials in bulk in and out the cell.

Endocytosis and exocytosis (II)

Endocytosis and exocytosis (II)

A more detailed view on the role of the endoplasmic reticulum, the Golgi apparatus and the cell's membrane lipid bilayer in the processes of exocytosis and endocytosis.

Mitosis (I)

Mitosis (I)

The mitotic process explained through an animated movie. [Some key words: thread, coil, unwind, spindle, fiber].

Mitosis (II)

Mitosis (II)

Another animated movie on mitosis, this time silent.

Mitosis (III)

Mitosis (III)

The central stages of mitosis in a microscopic movie.

Meiosis

Meiosis

The meiotic process explained through an animated movie.

2. Heredity and Transmission
Mendel's gene theory explained

Mendel's gene theory explained

A quite aged but still great and clear explanation of Mendel's works.

Heredity

Heredity

Basic Mendelian Genetics explained in a simple way.

Genetics 101 Part 1: What are genes?

Genetics 101 Part 1: What are genes?

On DNA, genes and chromosomes.

Produced by 23andMe

Genetics 101 Part 2: What are SNPs?

Genetics 101 Part 2: What are SNPs?

On molecular-level mutations and inherited variation.

Produced by 23andMe

Genetics 101 Part 3: Where do your genes come from?

Genetics 101 Part 3: Where do your genes come from?

On chromosomes and gender inheritance.

Produced by 23andMe

Genetics 101 Part 4: What is phenotype?

Genetics 101 Part 4: What is phenotype?

On the phenotype and its genetic and environmental influences.

Produced by 23andMe

From genes to proteins

From genes to proteins

Watch the biochemical process by which a gene's expression yields a protein.

Code for Life (I)

Code for Life (I)

Beginning more than 3.5 billion years ago, a tiny, primitive molecule encoded instructions, that it passed to its children, who passed it to their children and so on, all the way down through time to all living things today. Watch the story of DNA.

Produced by Cassiopeia Project

Code for Life (II)

Code for Life (II)

Second part of the series.

Produced by Cassiopeia Project

Code for Life (III)

Code for Life (III)

Third part of the series.

Produced by Cassiopeia Project

Code for Life (IV)

Code for Life (IV)

Fourth part of the series.

Produced by Cassiopeia Project

Code for Life (V)

Code for Life (V)

Fifth part of the series.

Produced by Cassiopeia Project

Code for Life (VI)

Code for Life (VI)

Sixth part of the series.

Produced by Cassiopeia Project

Genetic engineering (I)

Genetic engineering (I)

Genetic engineering put simple.

Genetic engineering (II)

Genetic engineering (II)

Comprehensive video on the basic process of genetic engineering: creating recombinant DNA from different species.

Gene therapy

Gene therapy

See how a virus can be recombined with human DNA to save the life of a person.

DNA matching

DNA matching

DNA matching is used as a tool in a variety of applications, from paternity determinations to criminal forensics. Learn how it is done.

Produced by Cassiopeia Project

DNA fingerprinting

DNA fingerprinting

A closer look to the DNA matching technique.

High speed gene sequencing

High speed gene sequencing

Commercial video from a firm that has developed a high speed DNA sequencer.

Produced by Helicos Bioscience Corp.

Nuclear transfer (I)

Nuclear transfer (I)

Animation showing how an egg-cell is enucleated and then provided with a diploid nucleus taken from a somatic cell.

Nuclear transfer (II)

Nuclear transfer (II)

Watch how the nuclear transfer process is actually performed.

3. The Evolution of Living Matter
On the origin of species: first paragraphs

On the origin of species: first paragraphs

Listen to the starter paragraphs of the most influential book in the History of Science, Darwin's "On the Origin of Species by Means of Natural Selection, or The Preservation of Favoured Races in the Struggle for Life".

Evolution primer: who was Charles Darwin?

Evolution primer: who was Charles Darwin?

Discover how Darwin's curiosity, his passion for natural history, his voyage on the Beagle, and his use of the scientific process led to the publication of his groundbreaking book.

Naked evolution

Naked evolution

It's 150 years since Darwin's theory of Evolution was presented to the Linnean Society, and so we've Naturally Selected the Science of Evolution! We find out why scientists have revisited a textbook example of natural selection in action, find out why horny sheep are gambling on good weather and how bacteria in the lab can evolve into a new species! We find out why tragedy almost kept Darwin's ideas from ever being seen, by looking at the archives of his own letters. Plus, why crocodiles chat from inside their eggs, a new way to send messages underwater and why Martian soil would be good for growing cabbages! And in kitchen science we find out which surface is best for keeping ice cool.

Streamed from the Naked Scientists podcast

Charles Darwin in Australia

Charles Darwin in Australia

Professor Frank Nicholas has written a book called Charles Darwin in Australia, in which he writes about Darwin's experiences while in this country during the Beagle's expedition.

Streamed from the Ockham's Razor podcast

Lamarck's evolution

Lamarck's evolution

Before Darwin, Jean-Baptiste de Lamarck devised the first theory of evolution in 1809. However, it was discredited by most in the scientific community once Darwin published his theory of evolution by natural selection, 50 years later. Ross Honeywill tells us this fascinating story.

Streamed from the Ockham's Razor podcast

Facts of evolution (I)

Facts of evolution (I)

Examining the idea of common descent.

Produced by Cassiopeia Project

Facts of evolution (II)

Facts of evolution (II)

Examining transitional fossils, progression in fossil sequences, vestigial organs, geographical trails, homologous organs and "bad-designed" organs.

Produced by Cassiopeia Project

Facts of evolution (III)

Facts of evolution (III)

Examining extinctions, the fossil record, the concept of species, hybrids and speciation.

Produced by Cassiopeia Project

Facts of evolution (IV)

Facts of evolution (IV)

Examining evolution rates, embrionary development and common biochemistry.

Produced by Cassiopeia Project

Facts of evolution (V)

Facts of evolution (V)

Examining genome and protein comparisons between species and transposones.

Produced by Cassiopeia Project

Facts of evolution (VI)

Facts of evolution (VI)

Examining pseudogenes and endogenous retroviruses.

Produced by Cassiopeia Project

Mechanisms of evolution (I)

Mechanisms of evolution (I)

Examining how genetic variety arises in biological populations.

Produced by Cassiopeia Project

Mechanisms of evolution (II)

Mechanisms of evolution (II)

Examining how natural selection acting upon biological diversity drives evolution.

Produced by Cassiopeia Project

Natural selection made easy

Natural selection made easy

Well explained overview of the process of natural selection and how old Darwin's theory itself has had to adapt to survive under the new discoveries of Genetics.

The Theory of Evolution made easy

The Theory of Evolution made easy

Learn some evidence that makes evolution an accepted fact among biologists all over the world.

Evolution primer: how do we know evolution happens?

Evolution primer: how do we know evolution happens?

Learn about evolution through the fossil remains of whales' land-dwelling ancestors

Evolution primer: how does evolution really work?

Evolution primer: how does evolution really work?

Travel to Ecuador to see how the process of natural selection operates in populations of rainforest hummingbirds.

Evolution primer: why does Evolution matter now?

Evolution primer: why does Evolution matter now?

Learn how tuberculosis is transmitted and why the evolution of multi-drug resistant strains of TB in Russia affects us all.

Gradual evolution

Gradual evolution

The odds that such a complex organ as the human eye could have showed up all at once, and just randomly, are extremely low, creationists say. But the chances for it to appear gradually, step by step, are really high, as this video explains.

Gradual evolution of a complex organ: the eye

Gradual evolution of a complex organ: the eye

But can something like the human eye, that seems to only have any sense once it was fully developed, really appear by gradual evolution? Richard Dawkins explains how.

Evolution primer: isn't Evolution just a theory?

Evolution primer: isn't Evolution just a theory?

Learn the difference between the scientific and everyday use of key vocabulary words.

Evolution primer: why is Evolution controversial anyway?

Evolution primer: why is Evolution controversial anyway?

Consider different points of view, as scientists, religious leaders, and college students share their opinions about evolution, science, and religious faith.

The scientific method made easy

The scientific method made easy

Learn the rules of the scientific method of knowledge, starting by that of "conclusions must be based on empirical evidence".

Creation science made easy

Creation science made easy

Learn why creation science is not science, and why the creation theory is not even a theory.

4. Natural History of the Earth
The story of the Earth made easy

The story of the Earth made easy

Learn how a geological picture can be related to geological events that happened in the past, and how all this can help us to ellucidate the story of our planet.

The age of our world made easy

The age of our world made easy

Learn the basics on the dating techniques used in Paleontology.

Carbon dating

Carbon dating

Find out how carbon is used to determine how long ago an organism had died.

Produced by Cassiopeia Project

Fossilised fence posts

Fossilised fence posts

How much time does wood take to fossilise?

Streamed from the Naked Scientists QOW podcast

Protoplanetary disk

Protoplanetary disk

Accretion in a protoplanetary disk.

Paleo Earth

Paleo Earth

Watch the evolution of the Eath's continents thoughout the Phanerozoic eon.

Produced by Cassiopeia Project

The origin of Life made easy

The origin of Life made easy

Learn how could living matter come from non-living sludge.

Life to Eve (I)

Life to Eve (I)

From the primordial organic soup to the first vertebrates.

Produced by Cassiopeia Project

Life to Eve (II)

Life to Eve (II)

From the first amphibians to the extinction of the dinosaurs.

Produced by Cassiopeia Project

Life to Eve (III)

Life to Eve (III)

From the extinction of the dinosaurs to the first modern humans.

Produced by Cassiopeia Project

Highway of Life (I)

Highway of Life (I)

Great animation showing how Life on Earth evolved, diversified and increased in complexity from the primordial organic soup to the first fish.

Produced by Cassiopeia Project

Highway of Life (II)

Highway of Life (II)

Great animation showing how Life on Earth evolved, diversified and increased in complexity from the first fish up to humans.

Produced by Cassiopeia Project

Evolution of vertebrates

Evolution of vertebrates

Nice animation showing the evolutionary lineage that lead from the fish to hominids.

Dinosaur bird bones

Dinosaur bird bones

Some hollow bones are providing solid new evidence of how birds evolved from dinosaurs.

Produced by ScienCentral

Did bugs do in the Dinos?

Did bugs do in the Dinos?

Did a massive asteroid kill off the dinosaurs? Maybe not. Entomologist George Poinar thinks something much smaller might have done the job.

Streamed from the NOVA Science Now podcast

Evolution of human ancestry 101

Evolution of human ancestry 101

Wonderful animated short movie about the history of human lineage.

Evolution primer: did humans evolve?

Evolution primer: did humans evolve?

Examine the fossil and molecular evidence that supports the evolution of humans from earlier primate ancestors.

Human evolution made easy

Human evolution made easy

Learn how scientists came up with the idea of human evolution from the apes, and which are the fundamental patterns in human evolution.

Human ancestry made easy

Human ancestry made easy

This video traces our migration out of Africa and explains, through DNA evidence, how humans colonized the world.

Anthropologist Donald Johanson On

Anthropologist Donald Johanson On "Lucy's Legacy"

In 1974, Donald Johanson discovered the fossil he dubbed "Lucy", a previously unknown species of ancient hominid. Johanson talks about what the discovery meant for the human family tree and discusses his new book Lucy's Legacy: The Quest for Human Origins.

Streamed from npr.org

5. Plant Physiology
Zoom into a leaf

Zoom into a leaf

Watch the surface and the inside of a leaf progressively magnified by an electron microscope.

Photosynthesis

Photosynthesis

Learn how photosynthesis is performed inside the chloroplasts.

Produced by Britannica.com

Respiration

Respiration

Learn if and when a plant respires, absorbing CO2 and producing O2.

Produced by Britannica.com

Plant fertilization

Plant fertilization

Learn how male and female gametes fuse in plants and what happens afterwards.

Produced by Britannica.com

Double fertilization in flowering plants

Double fertilization in flowering plants

Detailed view of the process of fertilization in plants.

Reproduction of the pine tree

Reproduction of the pine tree

Learn the specificities of the reproduction process in the gymnosperms.

Produced by Britannica.com

Plant hormones and growth

Plant hormones and growth

Learn how plant hormones control their growth towards the light.

Produced by Britannica.com

Leaves maintain a constant temperature

Leaves maintain a constant temperature

A 60-second Science podcast.

Streamed from Scientific American

6. Dynamics of Ecosystems
Global Warming

Global Warming

Global Warming is a hot topic. This video looks at the evidence and focuses on these two questions: "is the Earth getting warmer?" and "what are the effects of Carbon Dioxide in the atmosphere?"

Produced by Cassiopeia Project

The truth about global warming

The truth about global warming

A simple and effective way to see how human activity relates to global warming.

Climate Change 2013: The Physical Science Basis

Climate Change 2013: The Physical Science Basis

The IPCC has produced a video on its Fifth Assessment Report (AR5). The first part on the Working Group I contribution to AR5 is now available.

Produced by the Intergovernmental Panel on Climate Change

Ask for a better world

Ask for a better world

Global warming: when you feel it, it's already too late.

Produced by Ponto de Criação

Teens, frogs and climate change

Teens, frogs and climate change

With frogs and other amphibians already dying in large numbers, a group of teenagers is joining other amateur scientists to gather information on the problem.

Produced by ScienCentral

Early birds and springtime

Early birds and springtime

A growing body of evidence shows that birds are nesting earlier due to global warming, with potentially harmful consequences.

Produced by ScienCentral

Coal combustion and acid rain

Coal combustion and acid rain

Watch how sulphur-rich coal is a major source of acid rain and what can be done to mitigate its damage.

Produced by Britannica.com

Analysing acid rain

Analysing acid rain

Visit this research station in the Black Forest, Germany, to watch rainwater being tested for acidity.

Produced by Britannica.com

The disappearing male

The disappearing male

Documentary about one of the most important, and least publicized, issues facing the human species: the toxic threat to the male reproductive system. The last few decades have seen steady and dramatic increases in the incidence of boys and young men suffering from genital deformities, low sperm count, sperm abnormalities and testicular cancer. At the same time, boys are now far more at risk of suffering from ADHD, autism, Tourette's syndrome, cerebral palsy, and dyslexia. The Disappearing Male takes a close and disturbing look at what many doctors and researchers now suspect are responsible for many of these problems: a class of common chemicals that are ubiquitous in our world. Found in everything from shampoo, sunglasses, meat and dairy products, carpet, cosmetics and baby bottles, they are called "hormone mimicking" or "endocrine disrupting" chemicals and they may be starting to damage the most basic building blocks of human development.

Produced by CBC

7. The Earth's Internal Energy
Pillow lavas (I)

Pillow lavas (I)

Pillow lavas are formed in the sea floor when the erupted rolling lava solidifies only superficially.

Pillow lavas (II)

Pillow lavas (II)

Watch the different shapes of the pillow lavas near an oceanic hotspot.