Fingers prune underwater not because of them absorbing the water or washing away the oil, but because of an evolutionary trait caused by the brain to enhance the grip of your fingers underwater.
24
Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
307
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Your fingernails grow faster in summer.
744
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
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