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.

Come with Jessi and Squeaks as they explore some of the animals that roamed the Earth during the ice age. And a lot of these animals had giant features, like teeth the size of bananas or mouths shaped like a shovel!

In this episode, Jessi and Squeaks learn about the many kinds of mouths insects can have, and why they look so different!<br/>

Squeaks and Jessi discover an animal with a head that reminds them of a boomerang. Its name is Diplocaulus, and they'll learn all about how that funny head helped it live a very long time...

Despite the name, we don’t know where the so-called “hell pigs” belong in the mammalian family tree. They walked on hooves, like pigs do, but had longer legs, almost like deer. They had hunched backs, a bit like rhinos or bison. But as...

Many people deal with a nail-biting habit at some point in their lives. Some will go to great lengths to try to stop, employing strategies like dipping their hands in salt or wearing gloves. And while not all of us are nail-biters, most...

20 million years ago, the ocean housed a creature so colossal that its stomach could reach volumes of almost 10,000 liters— big enough to fit an entire orca. It was the megalodon, the biggest shark to ever live. So, what was it like when...

It's barbecue season around the SciShow office, which means applying our knowledge of science to this delicious outdoor past-time.

Venomous snakes produce some of the world’s deadliest substances, so they have to be pretty careful about how they use it. But what happens if they accidentally inject themselves with their own harmful cocktail?

Most of us don’t really give fish scales a second thought, but for some fish, the scales of others can make for a tasty snack.

If you know one thing about mosquitoes, it’s probably their lust for blood. But there’s actually one species that almost never bites, even though it can. Could finding out why help us combat blood-borne diseases? Hosted by: Michael Aranda

Unless you saw the spider bite you, that swollen, bite-looking lesion on your arm is probably something else, and blaming it on an innocent 8-legged critter might do more harm than good. Hosted by: Stefan Chin

Eliminating certain species of mosquitoes could make summertime more enjoyable and cut down on the transmission of certain diseases. And scientists are looking into doing this by manipulating a single gene!

Squeaks and Mr. Brown are taking a break from working in the garden to learn about bunches of cool insects that live there and other places in the world!

Mosquitoes transmit a number of terrible diseases like malaria, West Nile virus, and the Zika virus, but why not the flu?

The development of agriculture was a huge game changer for human beings and it may have even changed the way we speak.

Would you rather be bitten by a venomous rattlesnake or touch a poisonous dart frog? While both of these animals are capable of doing some serious damage to the human body, they deliver their dangerous toxins in different ways. Rose...

Learn all about teeth! What kinds we have, how they help us, and how human teeth are different from other animals!

We all know that brushing our teeth is important but now with this experiment you can actually SEE how brushing keeps your teeth clean!

Most of us don’t really give fish scales a second thought, but for some fish, the scales of others can make for a tasty snack.

In 2017, a truck screeched to a halt. One of its containers slid off, hit a car, and spilled its contents— thousands of kilograms of hagfish. The result of this accident was an absolute mess: the highway was coated in a thick slime that...

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...

Claws, teeth, stingers... there are a lot of things that can make an animal look downright scary and dangerous. Sometimes, though, looks can be deceiving! Face your fears and learn about eight animals that use their tough looks to hide...

If you’ve ever eaten it, you’ve probably noticed how flaky fish can be. Poke at it with your fork and it just falls apart — no knife required. What makes fish different from other animal protein?