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How the Squid Lost Its Shell
Ancestors of cephalopods all had shells until it proved to be their biggest weakness.
S1 Ep38 | 8m 5s
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What Was the Ancestor of Everything?
The search for our origins go back to a single common ancestor.
S1 Ep37 | 11m 6s
Inside the Dinosaur Library
We talk to Amy Atwater, Collections Manager at the Museum of the Rockies.
S1 Ep36 | 7m 19s
The Most Useful Fossils In The World
Mysterious fossils can be used to tell time in the deep past.
S1 Ep35 | 5m 49s
What a Dinosaur Looks Like Under a Microscope
What has been observed and learned from putting dinosaur bones under a microscope.
S1 Ep34 | 8m 9s
How the Turtle Got Its Shell
Where did turtles come from? And how did the they get their shells?
S1 Ep33 | 8m 29s
The Other Explosion You Should Know About
The Sudden burst of diversity that marked the dawn of truly complex life on our planet.
S1 Ep32 | 6m 25s
How Sex Became A Thing
Follow the early history of how (and why) sex became a thing.
S1 Ep31 | 5m 39s
From the Cambrian Explosion to the Great Dying
The Paleozoic Era is one of the most chaotic times in Earth's history. Find out why!
S1 Ep30 | 10m 28s
The Whole Saga of the Supercontinents
So if we want to know how we got here, we have to understand how "here" got here.
S1 Ep29 | 8m 40s
The Great Snake Debate
90 million years ago, an ancient snake known as Najash had...legs.
S1 Ep28 | 6m 28s
Untangling the Devil's Corkscrew
In the late 1800s, paleontologists in Nebraska found huge coils of hardened sand.
S1 Ep27 | 6m 11s
The Time Terror Birds Invaded
5 million years ago, a predator made its way onto the coastal plains of North America.
S1 Ep26 | 5m 32s
How Two Microbes Changed History
More than two billion years ago, a tiny living thing started to live inside another thing.
S1 Ep25 | 7m 39s
When Giant Fungi Ruled
An unlikely group of pioneers ultimately made life on land possible -- the fungi.
S1 Ep24 | 6m 37s
What Happened to the World's Greatest Ape?
Gigantopithecus is the greatest great-ape that ever was.
S1 Ep23 | 7m 1s
The Last Time the Globe Warmed
Imagine an enormous, lush rainforest teeming with life...in the Arctic.
S1 Ep22 | 9m 54s
The Facts About Dinosaurs & Feathers
Dinosaurs have been found with some sort of fluff or even full-on plumage.
S1 Ep21 | 10m 1s
The Search for the Earliest Life
Even in a hellish environment, life found a way.
S1 Ep20 | 5m 37s
A Brief History of Geologic Time
Geologists have been able to identify crucial episodes in life’s history.
S1 Ep19 | 12m 8s
An Illustrated History of Dinosaurs
Our image of dinosaurs has been constantly changing since naturalists started studying the
S1 Ep18 | 12m 20s
When Whales Walked
We know whales as graceful giants bound to the sea.
S1 Ep17 | 4m 56s
Living Fossils' Aren't Really a Thing
Even the most ancient-looking organisms show us that evolution is always at work.
S1 Ep16 | 5m 5s
When The Earth Was Purple
But imagine a time when the Earth looked a little … purple.
S1 Ep15 | 5m 37s