If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
On average women can hear better than men.
170
Most people smile when they are frustrated, according to a study.
15
Only 2% of the Earth's population are natural redheads.
13
If you're over 100 years old, there's an 80% chance you're a woman.
143
15 percent of Americans secretly bite their toes.
57
The Japanese commonly put ketchup on their rice.
16