In this episode, Michael attempts to stump Hank and then they meet Kemo and Jessi from Animal Wonders.

Cane toads will eat just about anything, including each other! And researchers have reported a different way to help those with ALS continue to communicate their needs after losing the ability to move and speak.

Hank introduces us to the brilliant and heartless Fritz Haber, a great mind who is considered "the father chemical warfare," but who also made discoveries and innovations that helped lead to the Green Revolution which is credited with...

In the history of our species, we still don’t know exactly how and when early humans migrated across the world, but some ancient footprints might be helping us figure it out.

To design the Baha' Temple of South America, architect Siamak Hariri focused on illumination -- from the temple's form, which captures the movement of the sun throughout the day, to the iridescent, luminous stone and glass used to...

We’re having a birthday party for one of the world’s most famous scientists, Charles Darwin!!!

Although the tapir is one of the world's largest land mammals, the lives of these solitary, nocturnal creatures have remained a mystery. Known as "the living fossil," the very same tapir that roams the forests and grasslands of South...

For almost three decades, John Francis has been a planetwalker, traveling the globe by foot and sail with a message of environmental respect and responsibility (for 17 of those years without speaking). A funny, thoughtful talk with...

Navi Radjou has spent years studying "jugaad," also known as frugal innovation. Pioneered by entrepreneurs in emerging markets who figured out how to get spectacular value from limited resources, the practice has now caught on globally....

We’ve long thought that electric eels hunt individually…until we discovered a lake where one species hunt, and zap, in packs!

The best evidence we have suggests that, while Caviomorpha originated in South America, they came from ancestors in Africa, over 40 million years ago. So how did they get there?

* Viewer discretion advised. This video includes discussion of mature topics and may be inappropriate for some audiences. In love, we fall. We're struck, we're crushed, we swoon. We burn with passion. Love makes us crazy and makes us...

Imagine global security driven by collaboration -- among agencies, government, the private sector and the public. That's not just the distant hope of open-source fans, it's the vision of James Stavridis, a US Navy Admiral. Stavridis...

Squeaks and Jessi are spending the afternoon playing "Guess That Animal" and learning about some of their favorites!

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.

Why Only Some Monkeys Have Awesome Tails

Sometimes it seems like the past favored large animals, but it turns out that each one on this list has a different reason for its size.

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Carboniferous & Permian periods 360 251...

Amber is amazing stuff! It can preserve organisms whole, and essentially freeze them in time, and the specimens we’ve found in it so far range from amazing to downright bizarre. Here are six of the coolest things we’ve found trapped in...

The Great Dying hit life hard, but the species that survived took over the planet and diversified into many interesting forms, including the dinosaurs!

Two new studies challenge what we thought we knew about the first humans in the Americas, sending the archaeology community buzzing. Could people have been on these continents 10 to 15 thousand years earlier than archaeologists...

The ant world is an incredible, dangerous, and downright bizarre place. Some ants, though, are a lot cooler and more resourceful than you might give them credit for. Chapters SKULL-COLLECTING ANT 0:40 TRAP-JAW ANTS Credit: Johnson...

The SciShow Talk Show has a new look! And a new guest who isn't new at all - Jessi Knudsen Castañeda from Animal Wonders joins Hank to talk about one of her favorite subjects: poop! They are joined by Augusto Castañeda and Yucca the...

Cave explorer and geologist Francesco Sauro travels to the hidden continent under our feet, surveying deep, dark places inside the earth that humans have never been able to reach before. In the spectacular tepuis of South America, he...

Antarctica wasn't always covered in kilometer thick ice sheets, in fact, scientists have spent years figuring out what turned this once lush continent into its current icy state.