Your thumb is about the same size as your nose.
124
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
Human hair and fingernails continue to grow after death.
7
Early American humans hunted car-size armadillos and used their shells for houses.
12
You forget 90% of your dreams.
256
The average person's skin weighs twice as much as their brain.
131
Your heart will pump about 212 million liters in its lifetime.
26
Every human spent about half an hour as a single cell.
144