You forget 90% of your dreams.
256
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
On average a woman has 4 sexual partners in her lifetime.
-143
Gorillas can catch human colds and other illnesses.
205
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
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118