Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
We forget why we have entered a room because passing through doors creates an ‘event boundary’ causing the brain to file away what we were just thinking about.
26
The average person will go on a date at least 100 times before they finally marry.
33
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
130
The human brain is more active during sleep than during the day.
28