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7:03
How did two of the same kind of animal end up looking so different?
8:05
Ancestors of cephalopods all had shells until it proved to be their biggest weakness.
11:06
The search for our origins go back to a single common ancestor.
7:19
We talk to Amy Atwater, Collections Manager at the Museum of the Rockies.
5:49
Mysterious fossils can be used to tell time in the deep past.
8:09
What has been observed and learned from putting dinosaur bones under a microscope.
8:29
Where did turtles come from? And how did the they get their shells?
6:25
The Sudden burst of diversity that marked the dawn of truly complex life on our planet.
5:39
Follow the early history of how (and why) sex became a thing.
10:28
The Paleozoic Era is one of the most chaotic times in Earth's history. Find out why!
8:40
So if we want to know how we got here, we have to understand how "here" got here.
6:28
90 million years ago, an ancient snake known as Najash had...legs.
