Turns out, instead of having bats to thank for the existence of butterflies, the groups we should actually be thanking are…bees and beans.

For decades, scientists believed dinosaurs were diurnal and tiny mammals were nocturnal. But as researchers have uncovered more mammalian fossils and studied the biology of different dinosaur species, they’ve found some surprising results.

Bats pretty much appear in the fossil record as recognizable, full-on, flying bats. And they show up on all of the continents, except Antarctica, around the same time. So where did bats come from? And which of the many weird features...

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.

You know how moths like to fly into lamps or crawl all over your tv screen at night? Why do they do this?! The answer is more complicated than you might think...

Humans are pretty good at destroying things. Like habitats, animal populations... you catch my drift. But, there have been a few species that humans have helped bring back from the brink of extinction.

Of all the weird animals that exist in the world, platypuses are up there with the weirdest, and last year scientists discovered something even more peculiar about their fur: it glows! What may be even more strange, though, is how little...

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.

Of all the weird animals that exist in the world, platypuses are up there with the weirdest, and last year scientists discovered something even more peculiar about their fur: it glows! What may be even more strange, though, is how little...

Hank describes to us some news stories that illustrate how science is continually changing the things we think we "know" - from the status of various animals species, to the way our senses work and even where the Moon came from -...

The average global temperature is on the rise, evidenced by the ten warmest years on record happening since 2005. But this isn’t just about greenhouse gases preventing heat from escaping. Another culprit comes in the form of…clouds.

One might not think that snow could help anything stay warm through a harsh winter, but these tiny bats have found a way to utilize the insulation provided by the snow: they make little forts to wait out the winter.

Humans are pretty good at destroying things. Like habitats, animal populations... you catch my drift. But, there have been a few species that humans have helped bring back from the brink of extinction. Chapters 0:00 0:05 0:11 0:17 0:23 0:29

To human eyes, the world at night is a formless canvas of grey. Many nocturnal animals, on the other hand, experience a rich and varied world, bursting with details, shapes, and colors. What is it, then, that separates moths from men?...

Equipped with unique adaptations that make them both good at hunting and getting their creep on, owls are totally the ninjas of the bird world.

Welcome back to Bizarre Beasts: Season Zero. We are remastering episodes of Bizarre Beasts that were originally created for Vlogbrothers.

The greater bulldog bat lives in Central and South America where it uses its enormous feet to catch fish right out of the water.

Oilbirds come out at night, live in caves in huge colonies, and echolocate, but they aren't bats! Why would this South American bird have evolved to be so similar to our favorite flying mammals of the night?

Howcast - Learn four tips for how to take care of a crested gecko from reptile and amphibian expert Jungle Bob in this Howcast video.

Howcast - Find out if rabbits are nocturnal in this Howcast video featuring bunny lover Amy Sedaris and rabbit expert Mary E. Cotter.

Howcast - Learn how leopard geckos are different from other geckos from the animal experts at traveling petting zoo Squeals on Wheels in this Howcast video.

They're pretty much the ninjas of the lizard world.

They're pretty much the ninjas of the lizard world.

See how these super-sneaky Madagascar-dwelling lizards get their name.