Yawns are more contagious among people with closer relationships.
163
The offspring of two sets of identical twins are legally cousins but genetically siblings.
63
There's an isolated tribe in Zimbabwe where the people have only two toes, dubbed the 'ostrich people'.
10
People in parts of Western China put salt in their tea instead of sugar.
16
Women rate men more attractive if other women are looking and smiling at him.
17
According to some estimates, Americans are sitting on $30 billion worth of unredeemed gift cards.
223
35% of the people using personal ads for dating are already married!
23
Women have a slightly higher average IQ than men.
164