Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
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Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
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Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
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Penguins have a gland above their eye that turns saltwater into freshwater.
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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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The Savannah is the largest domestic cat breed. It resembles a small leopard and behaves like a dog. They can grow up to 40 lbs, have an eight foot vertical jump, and can be trained to walk on a leash and play fetch.
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Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
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