The offspring of two sets of identical twins are legally cousins but genetically siblings.
63
Women rate men more attractive if other women are looking and smiling at him.
17
The average American consumes 9 pounds of food additives every year.
6
According to CNN national security correspondent David Ensore, as of 2002 bin Laden had married four women and fathered roughly 25 or 26 children.
54
Roughly a quarter of the world's people live in China.
50
The leading cause of poisoning for children under the age of six in the home is liquid dish soap.
42