In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
199
Early American humans hunted car-size armadillos and used their shells for houses.
12
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.
35
Research has determined that most people are happiest at 7:26pm on a Saturday night.
70
The human eye blinks an average of 4,200,000 times a year.
233
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
73