It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
There's a guy named Fire Penguin Disco Panda.
26
The world's shortest man measures only 21.5 inches.
73
More than half the population of Kenya is under the age of 15.
71
There are actually seven different types of twins: Identical, Fraternal, Mirror-Image, Polar Body (Half Identical), Mixed Chromosome, Superfecundation, and Superfetation.
20
The most dangerous job in the United States is that of an Alaskan Crab Fisherman.
65
People in parts of Western China put salt in their tea instead of sugar.
16