Yawns are more contagious among people with closer relationships.
163
The average bra size today is 36C. Ten years ago it was 34B.
266
Babies' eyes do not produce tears until the baby is approximately six to eight weeks old.
58
In a year, the average person walks four miles to make his or her bed.
56
The offspring of two sets of identical twins are legally cousins but genetically siblings.
63
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
On average, men's noses are 10% larger than women's.
12