You can't tickle yourself.
29
You forget 90% of your dreams.
256
In one day, adult lungs move about 10,000 litres of air.
11
Mushrooms are more closely related to humans than they are to plants.
47
Our Right Lungs takes more air than our left lung.
194
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Modern humans first appeared about 200,000 years ago, but record keeping didn't begin until about 6,000 years ago. That means about 97% of human history is lost.
21