They evolved from a flying ancestor.
The climate of the Sahara was completely different thousands of years ago.
The greatest snake that the world ever saw was made possible by a warming planet.
If it weren't for the collapse, our ancestors might never have made it out of the swamps.
Long necks gave sauropods an advantage when it came to food, but not in the way you think.
Throughout the Cenozoic Era marsupials flourished all over South America.
Other than its bizarre arms, very little material from this dinosaur had been found.
Neanderthals actually behaved -- and likely thought and felt -- a lot like we do.
How could a body of water as big as the Mediterranean just...disappear?
The Fuzzy Origins of the Giant Panda
Beardogs are key to understanding an important branch of the mammal family tree.
Why do most remains of mammoths found in the fossil record turn out to be male?
Hyaenodonts gave the world some of its largest terrestrial carnivorous mammals ever known.
How we domesticated cats twice.
Were these monsters inspired by fossils?
Was it its own species? Or was it really just one of us?
The case of the dinosaur egg thief.
When Antarctica was green.
Just a few thousand years ago, the island of Madagascar was inhabited by giant lemurs.
How pterosaurs got their wings.
The raptor that made us rethink dinosaurs.
There is no missing link in our lineage, because that’s not how evolution works.
Was this dinosaur a cannibal?
Megaloceros was one of the largest members of the deer family ever to walk the Earth.
How Earth's First, Unkillable Animals Saved the World
How Volcanoes Froze the Earth...Twice
We all belong to the only group of hominins on the planet today. But we weren’t alone.
When Ihthyosaurs led a revolution in the seas.
Our world is the way it is because of the time when the synapsids struck back.
We’ll try to explain how evolution actually works and how we came to understand it.
There is some evolutionary method to the anatomical madness that is the "hell pig."
The History of Climate Cycles (and the Woolly Rhino) Explain
Scientists have recently discovered a major clue about the origins of the big cats.
When We Took Over the World
The Mystery Behind the Biggest Bears of All Time
The ability to make and use fire has fundamentally changed the arc of our evolution.
Sea scorpions thrived for 200 million years, coming in a wide variety of shapes and sizes.
The Island of Huge Hamsters and Giant Owls
How 7,000 Years of Epic Floods Changed the World
The Evolution of the Heart
The Humans That Lived Before Us
How Blood Evolved (Many Times)
Not too long ago, our early human ancestors were under threat of attack from predators.
What happened to the largest shark in history?
Today, apes live only in Africa and Asia but this wasn't always the case.
The story of sloths is one of astounding ecological variability.
Camels' origins story begins in an environment you’d never expect: a rainforest.
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.
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