Denmark has twice as many pigs as there are people.
66
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
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
Only about 2% of the world population has green eyes.
36
Roughly 90% of the world's population live in the northern hemisphere.
18
Nearly half of the entire world's adult population has never drunk alcohol.
12
There are about 255 babies born worldwide every minute.
46