Bats sleep 18-20 hours per day.
5
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
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Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
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There's a rare breed of pig that looks like a sheep.
14
Macaques monkeys in Japan learned to steal purses and wallets, take out the coins, and use them to buy drinks and snacks from vending machines.
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