On average, there's 100 billion neurons in the human brain.
83
Fingers prune underwater not because of them absorbing the water or washing away the oil, but because of an evolutionary trait caused by the brain to enhance the grip of your fingers underwater.
24
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
Our brains have a negativity bias and will remember bad memories more than good ones.
15
We share 70% of our DNA with a slug.
218
In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
130