Due to the angle at which the optic nerve enters the brain, staring at a blue surface during sex greatly increases the intensity of orgasms.
252
By weight, Bone is five times stronger than steel.
417
Babies crawl an average of 200m a day.
212
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
307
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
199
The average person will go on a date at least 100 times before they finally marry.
33
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11