Yawns are more contagious among people with closer relationships.
163
Most people smile when they are frustrated, according to a study.
15
The Japanese, on average, are the shortest people.
320
There's a guy named Fire Penguin Disco Panda.
26
A man is more likely to get a woman's phone number if he is accompanied by a dog.
20
Babies cry but they don't produce tears until one to three months after birth.
238
Women have a slightly higher average IQ than men.
164
The offspring of two sets of identical twins are legally cousins but genetically siblings.
63