Biology Facts & Trivia - Page 9

Emus and kangaroos cannot walk backwards. Sciensational.com

Shrimp's heart is in its head. Sciensational.comSubmitted by: Scien

The average person falls asleep in seven minutes. Sciensational.com

Starfish don't have brains. Sciensational.com

Chimpanzees are the only animals that can recognize themselves in a mirror.

House flies have a lifespan of two weeks. Sciensational.com

The Atlantic Giant Squid's eye can be as large as 40cm (15.75in) wide.

The longest living cells in the body are brain cells which can live an entire lifetime. Sciensational.com

It takes approximately 12 hours for food to entirely digest.

The Stegosaurus dinosaur measured up to 9.1m (30ft) long but had a brain the size of a walnut. Sciensational.com

The smallest bone in the human body is the stapes or stirrup bone located in the middle ear. It is approximately 0.28cm (0.11in) long. Sciensational.com

The world's largest amphibian is the giant salamander. It can grow up to 1.5m (5ft) in length. Sciensational.com

Snakes are true carnivores because they eat nothing but other animals. They do not eat any type of plant material.

When you get goosebumps and your hair stands, the hair helps to trap air, making you feel warmer by keeping in your body heat. Sciensational.comSubmitted by: Jeremy - United States

93% of a water melon is water. Sciensational.com

The human body has less muscles in it than a caterpillar.

When you blush, your stomach lining also reddens. Sciensational.com

The human body contains about 9,600km (6,000mi) of blood vessels.

The surface area of a human lung is equal to that of a tennis court. Sciensational.com

From the age of thirty, humans gradually begin to shrink in size. Sciensational.com