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
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Roughly 90% of the world's population live in the northern hemisphere.
18
There are approximately three chickens for every human on Earth.
13
Nearly half of the entire world's adult population has never drunk alcohol.
12
There are about 255 babies born worldwide every minute.
46
Only about 2% of the world population has green eyes.
36
About two hundred babies are born worldwide every minute.
237