SciShow
A Brief History of Life: Dinosaur Time!
The Great Dying hit life hard, but the species that survived took over the planet and diversified into many interesting forms, including the dinosaurs!
SciShow
The Secret of Regeneration in... Alligators
Why can amphibians, fish and even some reptiles regenerate limbs, while birds and mammals can’t? Researchers think they might have found a clue on the tip of the alligator’s tail.
PBS
The Great Snake Debate
90 million years ago, an ancient snake known as Najash had...legs. It is by no means the only snake to have limbs either. But what's even stranger: we're not at all sure where it came from.
SciShow
The 10 Oldest Fossils, and What They Say About Evolution
Wouldn’t it be cool to be able to point at a fossil and know that it’s the first, say, plant? Well... yeah! But it's not that easy! Scientists are always making new discoveries that throw all our old assumptions into question, but we've...
TED Talks
TED: Four billion years of evolution in six minutes | Prosanta Chakrabarty
Did humans evolve from monkeys or from fish? In this enlightening talk, ichthyologist and TED Fellow Prosanta Chakrabarty dispels some hardwired myths about evolution, encouraging us to remember that we're a small part of a complex,...
Crash Course
Chordates - CrashCourse Biology
Hank introduces us to ourselves by taking us on a journey through the fascinatingly diverse phyla known as chordata. And the next time someone asks you who you are, you can give them the facts: you're a mammalian amniotic tetrapodal...
Crash Course
Population Ecology: The Texas Mosquito Mystery - Crash Course Ecology
Population ecology is the study of groups within a species that interact mostly with each other, and it examines how they live together in one geographic area to understand why these populations are different in one time and place than...
Bozeman Science
Animals
Paul Andersen briefly surveys members of the Domain Animalia. He begins with brief description of the phylogeny of animals. He then describes the characteristics of all animals, heterotrophy, multicellularity, motility and blastula. He...
Bozeman Science
Homeostatic Evolution
Paul Andersen shows how homeostasis reflects of evolution through time. The endocrine system shows continuity through flatworms, earthworms and vertebrates. However the respiratory system shows change as organisms move onto land. The...
Curated Video
Bile
A bitter, dark green to yellow liquid produced by the liver, and stored in the gall bladder. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...
Curated Video
Digestion
The mechanical and chemical breakdown of food in the body into simpler chemicals that can be absorbed and used in its metabolism. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and...
Curated Video
Chordate
Animals that at least at some stage in their development possess a stiff, rod-like structure running along their back, called a notochord. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning...
Curated Video
Southern Reef Squid
Visit the shallow spawning grounds of the colour-changing reef squid. Biology - Animal Kingdom - Learning Points. The southern reef squid is one of around 800 species of cephalopod. Cephalopods are the most intelligent of all...
Curated Video
What is a Mammal? - Mammal Characteristics
What is it about the way mammals are born, and reared, that makes them unique in the animal kingdom? Learn the major characteristics that make a mammal, a mammal. Biology - Animal Kingdom - Learning Points. Mammals are warm-blooded...
Curated Video
How Did Amphibians Evolve?
Over millions of years, fish species evolved to leave water and survive on land, producing the characteristics shared by all amphibians. Biology - Animal Kingdom - Learning Points. The coelacanth is a lobe-finned fish that evolved 400...
Curated Video
How Did Birds Evolve?
They walked on two legs, laid their eggs in nests, and some even glided through the air – find out more about the theropod dinosaurs, from which all birds evolved. Biology - Animal Kingdom - Learning Points. A Twig Curriculum Film....
Curated Video
Vertebrates – Jigsaw
What is it? ... It's a koala bear! Life processes - Variation and classification - Vertebrates A Twig Tidbit Film - Jigsaw. An image is slowly revealed as pieces of the jigsaw are removed. The children have to identify it.
Curated Video
Vertebrates and invertebrates
There are millions of animals in the world. They are all either vertebrates with a backbone, or invertebrates without a backbone. Living things - Animal kingdom - Grouping animals Learning Points All animals are either vertebrates with a...
Curated Video
Classifying living things – True or false
True or false ... Starfish, vultures and humans belong to the same kingdom? Life processes - Variation and classification - Classifying living things Learning Points Visually different species can all belong to the same kingdom. A Twig...
Curated Video
Vertebrates – Odd one out
Four animals are shown on screen, but which one is not a reptile? Life processes - Variation and classification - Vertebrates Learning Points Turtles, snakes and crocodiles are reptiles. Frogs are amphibians. A Twig Tidbit Film - Odd one...
Curated Video
Vertebrates – What happens next?
The gliding tree frog leaps into the air ... what happens next? Life processes - Variation and classification - Vertebrates A Twig Tidbit Film - What happens next? A short section of film is played and the children have to guess what...
Curated Video
Vertebrates
Find out which groups of animals have backbones. Life processes - Variation and classification - Vertebrates Learning Points Vertebrates are animals with an internal backbone. Vertebrates can be divided into five groups with distinctive...
Curated Video
Why do we classify?
How does classification work and why is it so important? Life processes - Variation and classification - Why classify? Learning Points Classification is grouping different living things together by their features. Some animals are not...
Curated Video
Invertebrates
More common than you think ... but what exactly is an invertebrate? Life processes - Variation and classification - Invertebrates Learning Points Invertebrates are animals that have no backbone. Invertebrate groups are insects, arachnids...