Up Next
Back to Show
Eons
That Time The Ocean Lost (Almost) All Its Oxygen
Season 6
Episode 4
This is the story of how our planet rescued itself from extreme conditions in the Cretaceous Period, at the cost of essentially suffocating the oceans for half-a-million years.
Support Provided By
9:26
Hidden in rocks may have animal kingdom’s oldest known predator.
9:58
Beneath their shell, the crustaceans hold an evolutionary mystery.
10:04
In Australia, evolution built a family of deadly predators.
7:20
Seahorses are one of the ocean's worst swimmers but their origin story is great.
8:21
In recent years, Archaea's connection to us has been pretty huge and surprising.
8:53
Charles Darwin encountered a tiny fox-like creature during his famous voyage.
8:59
While some fishapods were crawling out of water, others were diving right back in.
10:17
We think our water came from unlikely sources: meteorites, space dust, and even the sun.