Nearly half of the entire world's adult population has never drunk alcohol.
12
There are approximately three chickens for every human on Earth.
13
A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
18
Every person in the world can fit in Texas and be given over 1000 sq ft in which to live.
14
Although African-Americans make up only 13% of the U.S. population, they accounted for one half of the estimated new HIV/AIDS diagnoses in 2004.
70
Denmark has twice as many pigs as there are people.
66
Roughly 90% of the world's population live in the northern hemisphere.
18