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
Babies crawl an average of 200m a day.
212
Modern humans first appeared about 200,000 years ago, but record keeping didn't begin until about 6,000 years ago. That means about 97% of human history is lost.
21
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
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
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
The average person's skin weighs twice as much as their brain.
131