Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
94
Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
307
It takes about 20 seconds for a red blood cell to circle the whole body.
102
The human brain is more active during sleep than during the day.
28
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
Gorillas can catch human colds and other illnesses.
205
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
The human brain doesn't stop developing until about 25 years old.
102