Pain occurs when sounds are above 130 db.
123
Humans are capable of running 40 mph according to a study by bio-mechanical expert Dr. Matthew Bundle. Today's fastest man, Usain Bolt, has a top speed of 28 mph.
35
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
Our Right Lungs takes more air than our left lung.
194
Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
307
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
Early American humans hunted car-size armadillos and used their shells for houses.
12