Tigers can see 6 times better at night than humans.
305
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Due to the angle at which the optic nerve enters the brain, staring at a blue surface during sex greatly increases the intensity of orgasms.
252
Our brains have a negativity bias and will remember bad memories more than good ones.
15
It takes about 20 seconds for a red blood cell to circle the whole body.
102
Every human spent about half an hour as a single cell.
144
A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
23
