There are approximately three chickens for every human on Earth.
13
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
Roughly 90% of the world's population live in the northern hemisphere.
18
Only about 2% of the world population has green eyes.
36
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
If the population of China walked past you, in single file, the line would never end because of the rate of reproduction.
1k
Nearly half of the entire world's adult population has never drunk alcohol.
12