Back to Show
Eons
How the Starfish Got Its Arms
Season 4
Episode 5
The story of how the starfish got its arms reminds us that even animals that might be familiar to us today can have incredibly deep histories - ones that stretch back almost half a billion years.
Support Provided By
10:05
Here's how the evolution of ocean-going whales affected deep-ocean communities.
11:09
Scientists discover dinosaurs and tiny mammals' sleep habits are different than thought.
7:55
The history of how the Amazon's revolution began in just one day.
8:06
The very last mammoths that ever lived experienced what’s known as a mutational meltdown.
7:44
Some Mammal Traits Show Up a Lot Earlier and in Things That Weren’t Mammals at All.
10:01
Find out if Sloths Really Did Poop Themselves to Death.