The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
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Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
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Camels and llamas can cross breed. The offspring is called a ‘Cama’.
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There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
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