Fingers prune underwater not because of them absorbing the water or washing away the oil, but because of an evolutionary trait caused by the brain to enhance the grip of your fingers underwater.
24
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
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
If the human eye was a digital camera, it would have 576 megapixels.
25
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Yawns are more contagious among people with closer relationships.
163
A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
18