Denmark has twice as many pigs as there are people.
66
There are approximately three chickens for every human on Earth.
13
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Only about 2% of the world population has green eyes.
36
Nearly half of the entire world's adult population has never drunk alcohol.
12
If the population of China walked past you, in single file, the line would never end because of the rate of reproduction.
1k
Roughly 90% of the world's population live in the northern hemisphere.
18
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