pbs-eons 6 months ago

PBS Eons | When a Tiny Land Bridge Triggered an Ice Age

On land, the Isthmus of Panama kicked off possibly the greatest natural experiment in the history of life on Earth.

In the water, this narrow strip of land did something completely different: it divided. 


And that division would have a much bigger effect on the planet than the land connection ever did.

PBS Eons
history channel