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动物的致命的进化错误

Hey kids, when living things evolved, it's almost always for the better.

After all the reason genes get passed down is because of the fact that they help the organism survive.

Occasionally, though, adaptations that might help an animal in general can become huge drawbacks in other ways.

Today we're going to talk about some inherited traits that can end up screwing certain animals over if they're not careful.

First is sloths.

So evolutionarily, life has found two distinct methods to handling survival on land.

You got the plants and the fungi you just kind of hang out, and then you got the animals who actually, you know, do things.

The sloth is the one member of the animal kingdom who was brave enough to say: Alright, I made the wrong choice here.

This whole mobility thing? Way overrated.

So you know what, f* it, I'm changing teams.

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