Up Next
Back to Show
Eons
How the Squid Lost Its Shell
Season 1
Episode 38
The ancestors of modern, squishy cephalopods like the octopus and the squid all had shells. In ancient times, their shell was their greatest asset but it eventually proved to be their biggest weakness.
Support Provided By
Season
11:25
What did life look like when the Amazon watershed flowed backwards?
12:10
Did you know the evolution of the butthole was a major breakthrough in animal development?
12:28
Learn about the complicated the history of mammals and their disappearance.
9:19
Where are all the east coast dinosaurs?
10:50
Where did our moon come from? The origin is even stranger than you may imagine.
10:04
The Himalayas changed everything.
11:53
What led to the creation of the trunk?
11:55
What was the first ever drink?
9:45
How did the "false horse," Thoatherium, and its relatives survive?
10:21
Did you know volcanoes created the Atlantic Ocean that we know today?
8:04
Learn about how researchers have discovered a piece of a weird, but critical, time in the deep past…
10:46
Maybe there wasn’t just one so-called "cradle of humankind"?