Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
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Research has determined that most people are happiest at 7:26pm on a Saturday night.
69
Pain occurs when sounds are above 130 db.
124
Our eyes are always the same size from birth, but our nose and ears never stop growing.
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Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
307
By weight, Bone is five times stronger than steel.
417
A person can live without food for about a month, but only about a week without water.
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