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The Second Time Sponges Took Over The World

Season 6 Episode 20 | 8m 04s

Researchers have discovered a piece of a weird, but critical, time in the deep past…a time when the first-ever mass extinction may have turned Planet Earth into Sponge World.

Aired: 05/13/24
What doomed the Neandertals?
What did life look like when the Amazon watershed flowed backwards?
Did you know the evolution of the butthole was a major breakthrough in animal development?
Learn about the complicated the history of mammals and their disappearance.
Where are all the east coast dinosaurs?
Where did our moon come from? The origin is even stranger than you may imagine.
The Himalayas changed everything.
What led to the creation of the trunk?
Is it possible that monsters that populate our legends were influenced by the fossil record?
Just a few thousand years ago, Madagascar was inhabited by giant lemurs.