Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
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Our eyes are always the same size from birth, but our nose and ears never stop growing.
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Humans are capable of running 40 mph according to a study by bio-mechanical expert Dr. Matthew Bundle. Today's fastest man, Usain Bolt, has a top speed of 28 mph.
34
A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
23
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
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Gorillas can catch human colds and other illnesses.
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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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