The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Your thumb is about the same size as your nose.
124
Human hair and fingernails continue to grow after death.
7
Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
307
A man's beard grows fastest when he anticipates sex.
239
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89