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
Only humans shed emotional tears.
331
The human brain has the capacity to store everything that you experience.
4k
Early American humans hunted car-size armadillos and used their shells for houses.
12
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Human hair and fingernails continue to grow after death.
7
The human brain doesn't stop developing until about 25 years old.
102
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13