Your thumb is about the same size as your nose.
124
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
24
Early American humans hunted car-size armadillos and used their shells for houses.
12
The human sigh acts as a physiological reset button.
23
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
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14