Biology Facts & Trivia - Page 8

You can figure out which way is south if you are near a tree stump. The growth rings are wider on the south side.
Eighty-five percent of all the plants and animals live in the sea.sciensational.com
Babies are born far sighted - their eyes start to focus properly between 3 to 6 months of age.
Men have more blood in their circulatory system than women and more red blood cells.
Tongue Our tongue, like the heart, is an organ that does not fatigue.
Your blood vessels, if laid end to end, would encircle the globe twice over.
Some species of Bamboo can grow at the rate of 1 m (3.2 ft)in 24 hours.sciensational.com
A single bacteria cell, given all the food it needs, could divide into a ball of cells the size of the Earth in 24 hours.
The DNA in a single human cell is 37 m (121 ft) long when unravelled.
DNA unravels at 7000 RPM (revolutions per minute).
The housefly hums in the middle octave, key of F
From the age of thirty, humans gradually begin to shrink in size.sciensational.com
The surface area of a human lung is equal to that of a tennis court.
The human body contains about 9,600 km (6,000 mi) of blood vessels.
When you blush, your stomach lining also reddens.
The human body has fewer muscles in it than a caterpillar.
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.com Submitted by: Jeremy - United States
93% of a water melon is water.
Snakes are true carnivores because they eat nothing but other animals. They do not eat any type of plant material.
The world's largest amphibian is the giant salamander. It can grow up to 1.5 m (5 ft) in length.