Up Next
Back to Show
Eons
The Evolution of the Heart (A Love Story)
Season 2
Episode 12
In order to understand where hearts came from, we have to go back to the earliest common ancestor of everything that has a heart. It took hundreds of millions of years, and countless different iterations of the same basic structure to lead to the heart that you have today.
Support Provided By
10:45
For flowering plants to take over, they first helped burn the old world—and then put the fires out.
11:37
Ancient weeds mimicked crops, tricking farmers into domesticating friends—and enemies—by mistake.
12:14
Brains and brawn aren’t opposites—they’ve been linked far longer than we might think.
10:27
Understanding the Isthmus of Panama.
9:35
Tiny mammals and a group of lizard-like reptiles shared a trait that helped them survive extinction.
10:43
Where the space rock came from 66 million years ago that crashed and killed the dinosaurs.
8:19
Fish evolved terrestrial traits to...stay fish?
12:07
We're the only ones with chins, and we don't know why.
12:40
Why did sharks get so incredibly diverse and odd during the Golden Age?
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?