What Was the Ancestor of Everything?

Eons

11th April 2018 10 mins Season 2 Episode 13

The search for our origins go back to a single common ancestor -- one that remains shrouded in mystery. It’s the ancestor of everything we know and today scientists call it the last universal common ancestor, or LUCA.

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Season 2 · Episode 14

How the Squid Lost Its Shell

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.

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