Jellyfish as a species are actually older than dinosaurs and sharks.
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The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
Jaguars frequently get high by eating hallucinogenic roots, which also increases their senses for hunting.
6
When you shave a guinea pig it looks like a little hippo.
19
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Gorillas can catch human colds and other illnesses.
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