The average sperm cell swims at 8 inches per hour.
4
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
There are about 255 babies born worldwide every minute.
46
We share 70% of our DNA with a slug.
218
Gorillas can catch human colds and other illnesses.
205
You can't tickle yourself.
29
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
A person can live without food for about a month, but only about a week without water.
156