After eating, a housefly regurgitates its food and then eats it again!
16
A rat can fall from a five story building without injury.
44
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
World's heaviest primates: morbidly obese humans. After that: gorillas at 485 lbs.
106
If NASA sent birds into space they would soon die; they need gravity to swallow.
146
At one 'feeding', a mosquito can absorb one and a half times its own weight in blood.
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