Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
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The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
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Dogs have been man's pet for over 14,000 years.
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Early American humans hunted car-size armadillos and used their shells for houses.
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Ants have tiny magnetic compasses in their antennae which help them navigate.
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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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