Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
307
In one day, adult lungs move about 10,000 litres of air.
11
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
Your heart will pump about 212 million liters in its lifetime.
26
By weight, Bone is five times stronger than steel.
417
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
If the human eye was a digital camera, it would have 576 megapixels.
25