Eons

The Evolution of the Heart (A Love Story)

Season 2 Episode 12 | 9m

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.

Aired: 02/14/19

Rating: NR

Video has closed captioning.

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