Fun Facts About Spiders

1) Spiders' lungs are shaped like an open book.

2) Spiders have a circulatory system, including a heart, veins, arteries, and blue blood.

3) Webbing is considered, pound for pound, to be the strongest organic chemical substance on Earth.
-A scientist spent years collecting spider web extract and actually made a spider suit. It repelled a steel baseball bat, bullets shot at close range, and even withstood getting hit by a pickup truck.

4) Baby spiders travel by a process called ballooning, in which they emit a small thread and float on the wind.
-When scientists travel to newly-formed volcanic islands, they find that spiders, which can travel through the air by ballooning, are almost always the first permanent inhabitants.

5) Jumping spiders can jump up to forty times their own body length.