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
Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
24
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
Gorillas can catch human colds and other illnesses.
205
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
Every human spent about half an hour as a single cell.
144
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
Our eyes are always the same size from birth, but our nose and ears never stop growing.
269