SciShow Kids
Say Hello to Saber-toothed Smilodon! | SciShow Kids
Smilodon the saber-toothed cat had really big teeth! Join Jessi and Squeaks and learn all about how fossils can tell us how these Ice Age animals lived.
SciShow
Why Can’t We Have Unicorns?
Unicorns may be mythical creatures, but they're very plausible-seeming ones. So why hasn't evolution gifted us with magical horses with horns? Let's take a look at the genetics and developmental biology of headgear in ruminants and other...
PBS
The Island of Shrinking Mammoths
The mammoths fossils found on the Channel Islands off the coast of southern California are much smaller than their relatives found on the mainland. They were so small that they came to be seen as their own species. How did they get...
PBS
The 40 Million-Year-Old Ecosystem In Your Mouth
The hardened residue scraped off your teeth at the dentist is called your dental calculus, and your dental calculus is the only part of your body that actually fossilizes while you’re alive! And scientists have figured out how to study &...
SciShow
Why Teeth Make The Best Fossils
Teeth are so well preserved in the fossil record that they make the best, most informative fossils we can find, from phylogenetic studies to learning about the evolution of the human brain.
SciShow
Why Can't I Grow More Teeth?
How come sharks get to have endlessly regrowing teeth when humans only get one set our entire lives? And how come some other mammals get to cheat the system? From elephants to baboons, we'll learn why teeth don't grow back.
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
Mountain Pine Beetle Update: SciShow Talk Show
SciShow welcomes back Diana Six to talk to us about current news on the Mountain Pine Beetle Outbreak. Then, Jessi Knudsen Castañeda stops by and brings a familiar friend whose anatomy may help scientists develop better hypodermic needles.
SciShow
4 Ways to Date an Archaeological Site
From wasps nests to nuclear reactors. Here are just a few clever ways archeologists figure out how old something is.
TED-Ed
TED-Ed: Why do we have crooked teeth when our ancestors didn't? | G. Richard Scott
According to the fossil record, ancient humans usually had straight teeth, complete with wisdom teeth. In fact, the dental dilemmas that fuel the demand for braces and wisdom teeth extractions today appear to be recent developments. So,...
SciShow Kids
Sea Monsters Of The Past | SciShow Kids
Squeaks is so excited to learn all about ancient sea monsters, like the plesiosaurs and mosasaurs! We'll also take a look at a fish wearing armor and the biggest shark to ever live - Megalodon!
PBS
Leading Edge: Fighting Cavities
A new method of treating tooth decay using silver nitrate may make the
pain, and expense, of traditional treatments obsolete. Special
correspondent Cat Wise has the story.
SciShow Kids
Why Do We Have Baby Teeth?
Have you ever lost a tooth? Or maybe you have teeth that are getting a little wiggly? It's all part of growing up! Join Jessi and Squeaks to learn why we lose our baby teeth and how we can take care of our new permanent teeth! Say cheese!
Be Smart
Where Do Teeth Come From?
Teeth. We've all got 'em (most of us, anyway). But how do they grow? Teeth are made from some biological nanotechnology that will blow your mind. They are strong enough to last hundreds of millions of years. Oh, and if you've ever...
SciShow
5 Things Humans Got Really Wrong About Our Bodies
Throughout history, people have been trying to figure out how our bodies work and how to fix them when things go wrong. This has led to some ideas that, with the benefit of hindsight, seem very strange
SciShow Kids
Teeth Not Just for Smiles!
Learn all about teeth! What kinds we have, how they help us, and how human teeth are different from other animals!
SciShow
Why Do I Have to Brush My Teeth?
There are a few reasons that modern humans have to brush our teeth to stay healthy, even though our primate cousins don’t. Grab your floss and find the answers inside!
SciShow
The Antibacterial Benefits of Wasp Venom
This week, scientists turned to an unlikely source to try to solve the problem of antibiotic resistance, and got a peek at the lifestyle of some of the very first mammals... by studying their teeth.
SciShow
What Megalodon’s Teeth Say About Their Parenting
A shark's teeth usually says "stay away", but we can learn a lot from them, including what type of parents they were.
SciShow
SciShow Quiz Show: Hank vs. Stefan
Associate Producer Stefan Chin faces off against his boss, Hank Green. Will Stefan manage to keep his job? What does a dinosaur sound like? And where is that space whale?
SciShow
How Close Are We to Cavity-Proof Teeth?
There’s nothing fun about getting a cavity! It can feel like there’s not much you can do to prevent them, but researchers are working on several ways to tackle their main cause so we can create a cavity-free world!
SciShow
How Do Desensitizing Toothpastes Work?
Do popsicles give you toothaches? Do you wonder why that special toothpaste makes it all better? We've got you covered!
SciShow
Mountain Pine Beetle Update: SciShow Talk Show
SciShow welcomes back Diana Six to talk to us about current news on the Mountain Pine Beetle Outbreak. Then, Jessi Knudsen Castañeda stops by and brings a familiar friend whose anatomy may help scientists develop better hypodermic...
SciShow
How to Find Out Why T. rex Arms Were… Like That | SciShow News
This week, a new theory as to why the mighty and fearsome Tyrannosaurus rex has such cute little arms. And in more fossil news, recently discovered giant ichthyosaur bones present a different picture of the Triassic.