Pain occurs when sounds are above 130 db.
124
Mushrooms are more closely related to humans than they are to plants.
47
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
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
Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
307
Obsessive nose picking is called Rhinotillexomania.
101
Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
24
A human being loses an average of 40 to 100 strands of hair a day.
133