Ever wondered who would win in a fight between a python and an alligator? What about a wolf versus a puma? SciShow has the answers. <b<br/>r/>

Hosted by: Hank Green (he/him)

There's a group trying to save the functionally extinct northern white rhino using in vitro fertilization. But the ethics around using assisted reproductive technologies to save endangered animals are far from simple.

In between two of the islands of Indonesia, there’s an ancient line that is both real and…not real.

All of today’s big cat species evolved less than 11 million years ago and yet their evolutionary history remains an almost total mystery. But scientists have recently discovered a major clue about the origins of the big cats, one that...

By combining historical demography and epidemiology, we can (sort of) determine how people throughout history have died.

Hank and Katherine talk about the wild cat known variously as a puma, mountain lion, cougar, panther and catamount and then Jessi from Animal Wonders brings a special animal guest to visit.

The kitties we let into our homes and hearts can have some strange and endearing behaviors, and we've made a fur-midable number of episodes about them! If you love cats, we've got a feline you're going to love this compilation!

Can you tell a leopard from a jaguar? How are lions different from tigers -- other than those stripes? Jessi introduces you to the four big cats!

Only four species in the cat family can roar: lions, tigers, leopards, and jaguars. And zoologists are pretty sure those four species can't purr. But why?

Even if you have a cat of your own, you might not know these three amazing things about our furry friends!

Hank and Katherine talk about the wild cat known variously as a puma, mountain lion, cougar, panther and catamount and then Jessi from Animal Wonders brings a special animal guest to visit.

Mangrove forests are crucial to the health of the planet, gobbling up CO2 from the atmosphere and providing a home for a diverse array of species. But these rich habitats are under continual threat from deforestation and industry. In an...

FEED ME! In this episode of Crash Course Kids, Sabrina has a chat with us about what living things eat to get energy. What makes something an omnivore, or a carnivore, or an herbivore? And how do plants fit in to all of this? This first...

This video discusses the issue of tiger ownership in Texas, where there are more tigers in captivity than in the wild. It explores the reasons behind this phenomenon, such as the lack of laws against owning tigers and the successful...

Dr. Mark Hebblewhite comes to the SciShow studio to talk to Hank about his research into ungulate herbivores and their predator-prey relationships with a variety of carnivores.

Why there will likely soon be more tigers in backyards in Texas than in the wilds of Asia.

We know how to clone animals, so why aren't we saving endangered species by cloning their populations?

It's raining where Jessi and Squeaks live, so they decided to bust out some books and read up on a special kind of forest where it rains almost every day!

Howcast - You say it's just for your son or daughter, but you're still a kid when you're around a pro ballplayer. Getting an autograph is like bagging your prey -- here's how to do it without getting clubbed with an autographed bat.

Howcast -Learn how to paint a cheetah or leopard face from face painting expert Emma Sadler in this Howcast video.

Critically-endangered Sumatran tiger cubs enjoy playtime on a swing at a conservation zoo.Source: London zoo

See tiger cubs Moka and Rakan explore their new surroundings at the San Diego Zoo.

See what it's like to raise a couple of tiger cubs, including how much they eat and how they brush their teeth.

See what it's like to raise a couple of tiger cubs, including how much they eat and how they brush their teeth.