Dogs have been man's pet for over 14,000 years.
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The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
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Only 3% of bird species have penises.
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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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A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
Sheep, goats, octopuses, and toads have rectangular pupils.
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Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
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