The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
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Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
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Mosquitoes don't just bite you, they also pee on you.
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Sloths take two weeks to digest their food.
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In 2011, a male tiger in India adopted a litter of orphaned cubs, taking on the role of ‘mother’. Wildlife officials say such behavior had never been observed before.
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