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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There's a lizard known as the 'Jesus Lizard' that can run across water.
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Jellyfish as a species are actually older than dinosaurs and sharks.
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Dolphins have names for one another.
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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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Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
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Cats and dogs can hear ultrasound.
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