The ancestor of all domestic cats is the African Wild Cat which still exists today.
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Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
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The reindeer is the only mammal that can see UV light.
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A domestic cat can sprint at about 31 miles per hour.
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The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
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Vanilla flavoring is sometimes made with an ingredient from beaver pee.
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Allegedly, Chrysippus, the Greek philosopher, died of laughter after getting his donkey drunk and watching it try to eat figs.
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Early American humans hunted car-size armadillos and used their shells for houses.
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