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Season 2 Episode 16 | 9m 8s Video has closed captioning.
The tools made by our human ancestors may not seem like much when you compare them to the screen you’re looking at right now but their creation represents a pivotal moment in the origin of technology and in the evolution of our lineage.
Aired: 04/01/19
The climate of the Sahara was completely different thousands of years ago.
How a Hot Planet Created the World's Biggest Snake
The greatest snake that the world ever saw was made possible by a warming planet.
When the Rainforests Collapsed
If it weren't for the collapse, our ancestors might never have made it out of the swamps.
A Short Tale About Diplodocus' Long Neck
Long necks gave sauropods an advantage when it came to food, but not in the way you think.
How South America Made the Marsupials
Throughout the Cenozoic Era marsupials flourished all over South America.
The Giant Dinosaur That Was Missing a Body
Other than its bizarre arms, very little material from this dinosaur had been found.
The Neanderthals That Taught Us About Humanity
Neanderthals actually behaved -- and likely thought and felt -- a lot like we do.
That Time the Mediterranean Sea Disappeared
How could a body of water as big as the Mediterranean just...disappear?
The Forgotten Story of the Beardogs
Beardogs are key to understanding an important branch of the mammal family tree.
Why Male Mammoths Lost the Game (w/ TierZoo!)
Why do most remains of mammoths found in the fossil record turn out to be male?
Preview: EONS
Join hosts Hank Green, Kallie Moore, and Blake de Pastino as they take you on a journey through the history of life on Earth. From the dawn of life in the Archaean Eon through the Mesozoic Era — the so-called “Age of Dinosaurs” -- right up to the end of the most recent Ice Age.
Explore Eons Now!
