It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
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
Denmark has twice as many pigs as there are people.
66
There are about 255 babies born worldwide every minute.
46
Every person in the world can fit in Texas and be given over 1000 sq ft in which to live.
14
Roughly 90% of the world's population live in the northern hemisphere.
18
There are approximately three chickens for every human on Earth.
13