Identical twins do not have identical fingerprints.
79
More than half the population of Kenya is under the age of 15.
71
Yawns are more contagious among people with closer relationships.
163
A study had men report their own penis size, and the average was found to be 6.1-6.5 inches. A subsequent clinical study actually measured penises, and found the average size to be 5.1-5.7 inches.
-3
One million Americans, about 3,000 each day, take up smoking each year. Most of them are children.
-86
If you're over 100 years old, there's an 80% chance you're a woman.
143
Most people smile when they are frustrated, according to a study.
15