Biology Facts & Trivia - Page 7

The average human produces a quart of saliva a day -- about 10,000 gallons in a lifetime Sciensational.com

A cockroach can live for several weeks without its head. Sciensational.comSubmitted by: Gads - New York, United States.

Fish are the only vertebrates that outnumber birds. Sciensational.com

Seventy percent of the dust in your home consists of shed human skin Sciensational.com

Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.

A mosquito has 47 teeth. Sciensational.com

Shark's teeth are literally as hard as steel.

Lobsters have blue blood. Sciensational.com

The heart of giraffe is two feet long, and can weigh as much as twenty four pounds.

Cheetah's can accelerate from 0 to 70 km/h in 3 seconds. Sciensational.com

Crocodiles swallow stones to help them dive deeper. Sciensational.com

A crocodile's tongue is attached to the roof of its mouth. Sciensational.com

The largest eggs in the world are laid by a shark.

The animal with the largest brain in relation to its body is the ant. Sciensational.com

A starfish can turn its stomach inside out. Sciensational.com

Hummingbirds can't walk.

Moths have no stomach. Sciensational.com

On an average, most people blink about 15,000 times in a 16-hour day (awake.)

The human head is a quarter of our total length at birth, but only an eighth of our total length by the time we reach adulthood. Sciensational.com

The human body has enough fat to produce 7 bars of soap. Sciensational.com