The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
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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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There was a bear called Wojtek who was adopted by Polish soldiers during WW2. It carried ammunition, wrestled with soldiers, and drank beer.
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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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When a male honey bee climaxes during sex, his testicles explode and then he dies.
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In Australia, there are spiders big enough to eat snakes.
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