Facts about Human Body Parts

Human babies are born colorblind. After 6 months of birth, they are able to perceive color.
The human brain can survive without oxygen for 5 to 10 minutes, 2 days without water, 11 days without sleeping, and 20 days without food.
Teeth can be used to identify the age and identity of a person by examining the size and dental features.
The only organ of the human body that can float on water is the Lungs.
Human heart beats 70 to 72 times per minute, 100,000 times in a day, 3,600,000 times in a year, and 2.5 billion times in a complete lifetime.
On average, the human kidney filters about 112-144 liters of blood and that results in 0.94 to 1.7 liters of urine every day.
Up to 10% of total blood can be found in the liver. Per hour it pumps almost 84 liters of blood.
Human beings can survive even after their stomach is removed from the body by changing their diet and eating frequently in smaller portions.