Your thumb is about the same size as your nose.
124
On average a woman has 4 sexual partners in her lifetime.
-143
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
Gorillas can catch human colds and other illnesses.
205
Research has determined that most people are happiest at 7:26pm on a Saturday night.
69
Enamel is hardest substance in the human body.
61
Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
307
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