whatilearned
Read more: https://en.wikipedia.org/wiki/Great_American_Interchange
TIL: The Great American Interchange happened 2.7 million years ago when the Isthmus of Panama arose and connected N. & S. America. Horses, cougars & bears migrated south. Armadillos, opossums & porcupines etc moved north*
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To some extend its mind lowing. A big piece of land just rising from the water and creating natural bridge like part. Amazing.
Fun Fact: Cougars migrated to NYC and started Real Housewives.
* Greatly simplified
This section covers which species moved where better
https://en.wikipedia.org/wiki/Great_American_Interchange#Effects_and_aftermath
South America won that deal.
Did horses go extinct in the Americas? I know the natives had never seen them when European invaders arrived.
Armadillos are so cute. I just pick em up and rub em all over my face.