Up Next
Back to Show
Eons
How the Walrus Got Its Tusks
Season 3
Episode 12
The rise and fall of ancient walruses, and how modern ones got their tusks, is a story that spans almost 20 million years. And while there are parts of the story that we’re still trying to figure out, it looks like tusks didn’t have anything to do with how or what these animals ate.
Sign up now for inspiring and thought-provoking media delivered straight to your inbox.
12:12
What was Charles Darwin really obsessed with?
12:29
Did you know ocean basins are reincarnated?
8:36
How did such a large predator survive?
9:41
How did a relative of the red panda end up in North America?
8:10
How did the competition of spiders vs insects drive them both into the air?
12:38
Why plate tectonics don't make sense.
9:59
Why was it the mammals who triumphed?
10:09
What do mountains reveal about primates?
10:39
When you take a deeper look at Pompeii, a different story could be told about the final moments.
10:38
We may have planet-shattering asteroids...
11:50
What doomed the Neandertals?
11:25
What did life look like when the Amazon watershed flowed backwards?