Jellyfish as a species are actually older than dinosaurs and sharks.
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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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When dragonflies mate, their tails form a love heart.
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Camels and llamas can cross breed. The offspring is called a ‘Cama’.
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Female kangaroos have three vaginas.
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Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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