It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
There are about 255 babies born worldwide every minute.
46
If the population of China walked past you, in single file, the line would never end because of the rate of reproduction.
1k
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
Roughly 90% of the world's population live in the northern hemisphere.
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Nearly half of the entire world's adult population has never drunk alcohol.
12