If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
The world's youngest parents were 8 and 9 and lived in China in 1910.
130
Americans will spend more on cat food this year than baby food.
32
You share your birthday with at least 9 other million people in the world.
201
Yawns are more contagious among people with closer relationships.
163
Americans did not commonly use forks until after the Civil War.
82