THE SPIDER'S SENSE OF TOUCH: As covered in the section Spider Information spider use vibrations to tell them everything about what’s around them as they have extremely poor eyesight, to get over the eyesight problem they have thousands of tiny hairs all over the body that translate information back to the brain of the spider.  The feet for the most sensitive part due to the nature of walking, these hairs as amplify the signals helping the spider get a better picture.  These hairs use vibrations to work out everything it needs to from food and where it is located to a mate and whether to eat him or not. 

SENSORY ORGANS: The eyes: a lot of people would say a spider has eight eyes well yes and no, some have six and some have eight but with most spiders their vision is still very short and not very good.  The jumping spider group have better eye sight because they have two large eyes at the front but still their eyesight is not good. With spiders being an "odd" species they mostly live with the brain working only on vibrations.

 HOW SPIDER LEGS WORK: There are seven segments to a spider's legs and this make them more flexible than human legs, which only have two segments.  Like humans, spiders have muscles that bend the legs closer to the body. However, spiders do not have muscles that move the legs away from the body.  Each time a spider needs to stretch a leg back out, it must pump fluid into that leg. Then, to bend the leg back, pressure is relaxed and the fluid flows out of the leg as the muscles do their work.  This is why a dead spider that died naturally has the legs bent into the body as the fluid had dried up and the muscles pull the legs in.

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