An eight-legged predatory arthropods, most of which spin webs to catch prey. Spiders eat other insects after catching them. So, if spiders are in your home, they are probably there because they have spotted other insects too. Although most spiders are non hazardous but some of them, like the red back spider could be as dangerous to kill a man. Spiders live in forests, in towns and houses, it builds its network in sheds, gardens, trees and outside the house where humans come accidentally in contact or pressing it at cleaning works. For red back spiders bite is painful, could create illness or death as the venom attacks the central nervous system of the victim.