Spider found in all parts of the tropics to Antarctica. They are not insects. Unlike insects which are composed of two distinct parts that are connected to each other with a small stem. The two sides are the main part and the part of the abdomen. In the main, eight eyes and four appendices. In the first two appendices there is a tooth that is attached to the venom gland. The spiders use these two fangs to immobilize their prey or to protect themselves. Here are two other appendages that is used as a mouth. Here are eight legs. There are four on each side of the spider. The parts of the abdomen of the spider's body is mostly for storing food. But this part is also made of spider silk and lungs are located here. The silk is produced in a special gland in the abdomen. Silk can be very strong. Most spiders use silk to catch prey. Most use silk spider in a web trap insects. But there are other methods too. The adhesive properties of networks only work for about two days. Then the spider eats the silk and built a new web. The size of spiders can vary widely. Most spiders are small. But the body of some spiders can be up to 9 cm. And then have legs too. So it could be very large. After the spider has immobilized the prey with the poison and then crush their prey with their teeth. Then he spat a stomach enzyme that breaks the fabric of your prayer and the tissue becomes a liquid food for the spider. The spider then filter food through your hair in your mouth and suck the food in the stomach. This is done by a pressure in the stomach using the muscles around the stomach. In a spider to fulfill an important part of the abdominal part of the body is composed of liquid food that is stored in the spider. The spider is able to survive so long without eating. There are over 34,000 known species in the world. Some large spiders can give a painful bite, but usually not as harmful. Other spiders have a dangerous poison, but the teeth are too weak to penetrate human skin. But of the 34,000 species of spiders that only about 200 that could be dangerous to humans. These two have a poison that are dangerous and have a bite that can penetrate human skin. The best known of these is the black widow spider, brown recluse spider and funnel web spider. The black widow spider is the most poisonous spider in North America, but as it only injects a small amount of venom is not very often people die. brown recluse spider could very badly injured. They are more serious for children. The funnel web spider is very dangerous, but so far only 13 deaths are known.
