PBS
Something Has Been Making This Mark For 500 Million Years
Paleodictyon, a hexagonal-patterned fossil, is a bit of a mystery. We don’t even know if it’s a trace fossil, or the organism itself. So… what could it be?
PBS
How We Identified One of Earth’s Earliest Animals
Scientists had no idea what type of organisms the life forms of the Ediacaran were—lichen, colonies of bacteria, fungi or something else. It turns out, the key to solving the puzzle of Precambrian life was a tiny bit of fossilized fat.
PBS
The Evolution of the Heart (A Love Story)
In order to understand where hearts came from, we have to go back to the earliest common ancestor of everything that has a heart. It took hundreds of millions of years, and countless different iterations of the same basic structure to...
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...
SciShow
Were Long Necks Also Tall Necks?
Long-necked sauropod dinosaurs are some of the most striking animals that ever lived. But we don't know what they used their long necks for, and whether they held them high in the air or parallel to the ground. Here's what we do know.
MinuteEarth
Why Most Fossils Are Incomplete
In 1990, fossil collectors in South Dakota stumbled across a dinosaur that turned out to be a really big deal. Not just because it was a T. rex – basically the most popular dino out there – or because it ended up in Chicago’s famous...
SciShow
The Oldest Known Animal May Be a Weird, Fleshy Oval | SciShow News
Dickinsonia might be the oldest known member of the animal kingdom, and the origin of birdsongs from the syrinx might be a little less mysterious.
SciShow
How Hyraxes Preserve the Past in Poo
Scientists who piece together our past can do so through the rare fossil or artifact, or they can go to one convenient location: a hyrax latrine.
SciShow
Could Dinosaurs Have Been Warm-Blooded?
For a long time, scientists have debated whether dinosaurs were warm-blooded or cold-blooded. Turns out, they were probably somewhere in between.
SciShow
Anthropology’s Greatest Hoax
Scientists are sometimes deemed objective observers of the world in which we live, but that’s not entirely true. They’re still human and can find themselves victim to fraudsters just like the lot of us.
SciShow
How Did North America End Up With a Marsupial?
Both North and South America have their own species of marsupial, the opossum, but how they got so far away from their Australian relatives is a bit of a mystery.
SciShow
5 Animals That Sleep Too Much (and One That Might Not Need To)
In the animal kingdom, sleeping can be dangerous. Lying completely motionless and unconscious for hours at a time is just asking for trouble. There are, however, some sleepy risk-takers who spend almost all of their days snoozing.
SciShow
Wheezy Waiter on Movie Science, Mutant Flu Facts, and 2 Sounds You've Never Heard!
Wheezy Waiter announces the SciShow nominees for "Worst Science in a Film," & Hank talks about the bird flu and shares two sounds that had never been heard by human ears until very recently.
SciShow
The Bizarre Evolution of Hemipenes (yes...hemipenes.)
Snakes have two penises (aka hemipenes) that come in a diverse array of shapes and sizes. And they could owe it all to their lack of legs.
SciShow
If the Asteroid Hit 10 Minutes Later...
If the 10 kilometer wide asteroid that hit the Earth 66 million years ago hit just a few minutes later, would the outcome of the living creatures here have been different?
SciShow
Why Aren't Mammals as Big as Dinosaurs?
Dinosaurs were huge—it's common knowledge. So why aren't modern mammals anywhere near that size? In this episode of SciShow, Hank gives a quick run-down of the reasons scientists think the land mammals of today are nowhere near the size...
SciShow
Where did Teeth Come From??
Everywhere in the animal kingdom you can find teeth in all sorts of shapes and sizes, so you probably think you have a pretty good idea where they came from. But in reality, this debate is still a hot one, and it may have something to do...
SciShow
3 Secrets About Ancient Earth, Hidden in Marine Fossils
Fossils can provide clues to the conditions that ancient species lived in, like what their environments felt like, how deep in the water some species lived, or even how long the Sun was out!
SciShow
What Did Dinosaurs Taste Like?
Have you ever wondered what dinosaur meat might have tasted like? Chances are you've eaten dinosaur more recently than you might expect.
SciShow
Were Dire Wolves Actually Real?
After watching Game of Thrones or playing DND, you might wonder if Dire Wolves were actually real. Turns out, these were real animals that lived during the last Ice Age, but they weren't actually...wolves? Join Hank Green and learn what...
SciShow
We Keep Finding Fossils in VERY Weird Places...
Fossils aren't just something you find at dig sites. Correction: 3:03 Actually, it was the American Museum of Natural History. But it was a Bruce Museum curator who found it!
SciShow
This Ichthyosaur Terrorized the Triassic Seas
One ancient predator turns out to have been able to eat much larger prey than we thought was possible, and a baby titanosaur skull gives us clues about what changes took place as sauropods grew up.
SciShow
The Tallest, Smallest, and Oldest Science of 2019
Scientific discovery often dabbles in the extreme, challenging and exceeding what we think of as "possible." And this year's discoveries were no different! We present to you three scientific discoveries made this year that set out to...
SciShow
The Mystery of the Cleveland-Lloyd Dinosaur Death Trap
Paleontologists think they've solved part of the mystery of the Cleveland-Lloyd Dinosaur Quarry, a dense bed of Jurassic dinosaur fossils. Also, electron microscope images reveal new, mucus-drenched info about the tubelip wrasse.