PBS
When Giant Millipedes Reigned
This giant millipede was the largest known invertebrate to ever live on land. So how did it get so big??
PBS
Why Sour May Be The Oldest Taste
While sour taste's original purpose was to warn vertebrates of danger, in a few animal groups, including us, its role has reversed. The taste of danger became something it was dangerous for us to avoid.
PBS
Our Bizarre, Possibly Venomous, Relative
This video contains images and video of snakes and spiders. It's possible Euchambersia possessed venom about 20 million years before the first lizards and over 150 million years before the first snakes evolved. We’ve teamed up Sarah Suta...
PBS
Our Ancient Relative That Said 'No Thanks' To Land
Around the time that some of our fishapod relatives were crawling out of the water, others were turning around and diving right back in.
PBS
How Vertebrates Got Teeth... And Lost Them Again
As revolutionary as teeth were, they would go on to disappear in some groups of vertebrates. But why?
Be Smart
Why Is Our Skeleton On the Inside?
Having bones is pretty cool. They make our blood, let us hear, and keep us from being just a squishy puddle on the floor. But for every species with bones, there are at least 20 species on Earth with exoskeletons instead. And those...
SciShow
Why You Have to Blink to Walk
When we picture the first tetrapods, or land vertebrates, crawling out of the ocean, we probably imagine they need legs. But evolution also had to bestow another important adaptation before they could leave the water: blinking!
SciShow
The Tiny Fish That's Changing Modern Medicine
The little fish Danio rerio holds secrets to understanding how vertebrates develop, how diseases like cancer work, and how we might one day learn how to regenerate human heart tissue.
SciShow
Your Head Might Be On Sideways
In your brain the right side controls the left half of your body and vice versa. We still aren't sure why this is, but some scientists have come up with a pretty bizarre explanation: that some ancient vertebrate ancestor was born with...
SciShow
How Tongues Helped Vertebrates Conquer Land
You might not think much of your tongue, but without it, we may have never conquered dry land and the world as we know it.
SciShow
A Brief History of Life: When Life Exploded
Right at the beginning of the Paleozoic, there was a huge explosion of more complex life. And that’s when things started to get really interesting. This is our second installment on the history of life, but you can watch in any order you...
SciShow
The Chromosomes Hiding in Specks of Lint
Tiny versions of chromosomes show up in things like birds, reptiles, and amphibians. These mysterious lint-like flecks may be the building blocks for our entire genomes.
SciShow
Your Head Might Be On Sideways
In your brain the right side controls the left half of your body and vice versa. We still aren't sure why this is, but some scientists have come up with a pretty bizarre explanation: that some ancient vertebrate ancestor was born with...
SciShow
Stop Saying Sharks Will Cure Cancer
It seems like every time scientists learn something new about sharks, people wonder whether this new information will finally show us how sharks will cure cancer. There’s no doubt about it, sharks are awesome, but is there a magic cure...
SciShow
Octopuses Are Ridiculously Smart
Octopuses are smart! They play with toys, pull off daring escapes, and are masters of disguise. But they're also smart in a lot of ways that the human mind probably can't comprehend. For example, they basically have independent brains in...
TED-Ed
Real-life "Alien" jaws | Darien Satterfield
After stalking a cuttlefish, a moray eel finally pounces. As the eel snags the mollusk in its teeth, its prey struggles to escape. But before it can wiggle away, a second set of teeth lunge from the eel's throat. This adaptation is...
TED-Ed
TED-ED: The coelacanth: A living fossil of a fish - Erin Eastwood
The coelacanth, a prehistoric fish that was mistakenly thought to have gone extinct at the same time as the dinosaurs, has managed to stick around our seas for 360 million years. Erin Eastwood details the surprising "back from the dead"...
SciShow
The Strange Case of the Missing Sunscreen Gene
If you've ever spent too much time in the sun and forgotten to put on sunscreen, you know how painful a sunburn can be. But for some animals, forgetting the sunscreen wouldn't be a problem because they can just produce their own!
SciShow
Quiz Show: SciShow Host Showdown
Hank Green and Michael Aranda must put their knowledge of hearing, seeing, and tasting to the test in order to win this quiz show written and hosted by the inimitable Blake de Pastino and his sidekick, Smart Blake.
MinuteEarth
Why Sharks Are Covered In Teeth
Sharks wouldn’t be known for their fierce teeth today if it weren’t for their ancient scales.
SciShow
A Brief History of Life on Earth: The Full Series
From the Archean Eon to the Holocene Epoch, check out this SciShow mini-series for a primer about life on earth.
SciShow
What is Selfing
This week, we've got new info about the strange-looking Tully Monster, and a report on a fish that was able to self-fertilize.
SciShow
Why Echidnas Are Evolutionary Misfits
It’s pretty well known that Australia is home to some strange animals, but echidnas are especially weird evolutionary misfits.
Bozeman Science
The Three Domains of Life
Paul Andersen starts with a brief description of the history of life. He then discusses the seven characteristics of life and why viruses are not alive. He then describes the three domains in the current classification system and...