The spider is the most common animals. There are about 40000 species of spiders in the world, except Antarctica, everywhere. Them some ugly appearance, some stumbling, some can go jumping ability, have ranged. Spiders are good and bad for humans, but in terms of its contribution, is mainly beneficial insects. Has a wide distribution spiders, strong adaptability, it can life or netting in the soil surface, soil, trees, grass, stone, caves, the water's edge, bushes, housing both inside and outside.