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
Human hair and fingernails continue to grow after death.
7
All 13 minerals necessary for human life can be found in alcohol beverages.
282
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Every human spent about half an hour as a single cell.
144
Your heart will pump about 212 million liters in its lifetime.
26
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Tigers can see 6 times better at night than humans.
305