Lurch, a Watusi bull, had the largest horns in the world.
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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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Honeypot ants are a unique insect that use their own bodies as living storage pots of honey.
4
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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Cats and dogs can hear ultrasound.
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