The Graveyard at the Center of the Earth
Scientists have been trying to solve the mystery of why plate tectonics works the way it does for over a hundred years. And they might have just uncovered a key to cracking it.
Episodes
-
Where Did the Moon Come From?
S7 E5 - 10m 50s
Where did our unique moon come from? It turns out that lunar rocks brought back by Apollo astronauts are a clue, pointing to the origin of our closest cosmic companion, an origin even stranger than you might imagine…
-
How The Elephant Got Its Trunk
S7 E4 - 11m 53s
What suddenly made long jaws such a liability? Well it looks like we can thank a changing climate for the evolution of the elephant’s trunk.
-
What's the Oldest Beverage
S7 E3 - 11m 55s
When exactly did we start drinking other things, and why? To find out, we have to look at the world’s oldest beverages – which might not be what you expect.
-
The Mystery of South America's False Horses
S7 E2 - 9m 45s
How did the "false horse," Thoatherium, and its relatives survive when their hoofed legs seemed to be adapted for an ecosystem that wouldn't exist for another 12 million years?
-
When India Was An Island
S7 E1 - 11m 4s
We need to talk about the biggest break-up of all-time: the break-up of the supercontinent Pangea, and how, ultimately, when India smashed back into Asia, it traded one form of evolutionary isolation for another.
Extras + Features
-
A Quick Introduction to Eons
S1 - 1m 28s
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. The evolutionary history of mammals including humans and other modern species is explored with these amazing paleontology
WETA Passport
Stream tens of thousands of hours of your PBS and local favorites with WETA Passport whenever and wherever you want. Catch up on a single episode or binge-watch full seasons before they air on TV.
Similar Shows

Deep Look
Science and Nature

Saving the Ocean
Science and Nature

Mysteries of Mental Illness
Science and Nature

Wild Metropolis
Science and Nature

Big Pacific
Science and Nature

Epic Trails
Science and Nature

Infinite Series
Science and Nature

The Secret Science of Sewage
Science and Nature

The Burren: Heart of Stone
Science and Nature

Supercharge Your Brain: Maximizing Your Cognitive Abilities
Science and Nature