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
Nearly half of the entire world's adult population has never drunk alcohol.
12
Denmark has twice as many pigs as there are people.
66
Only about 2% of the world population has green eyes.
36
Roughly 90% of the world's population live in the northern hemisphere.
18
About two hundred babies are born worldwide every minute.
237
There are about 255 babies born worldwide every minute.
46