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todayilearned

May 20, 2020

TIL a sloth's claws work the opposite way that human hand does. The default position is a tight strong grip, and sloths must exert effort to open them up. This is why sloths don't fall out of trees when they're asleep.

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todayilearned

Feb 19, 2020

TIL the only two surviving species of sloth aren’t closely related at all and most likely developed suspensorial behavior (hanging from trees) independently, an example of convergent evolution.

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