There are red, orange, yellow, black and white patterns that the brown widow spider may carry on the abdomen, all of these features misleading any untrained eye. The favorite habitat of the brown widow spider includes well protected locations in homes and other man-made structures. You may even find brown widow nests in buckets, mail boxes, entry corners, closets, garages and even in vegetation like shrubs and tree branches. The easy way to distinguish between males and females is not just body size, but also the length of the articulated feet. One other peculiarity of the camel spiders consists in the presence of several pairs of eyes grouped on various body parts. Thus, they may look more like spiders, but the visual accuracy is considered superior by many researchers. The largest wolf spider will not be more than two inches in length, but on a common basis their size is variable and lower. Typically hairy, the wolf spider can be brown or gray with all sorts of markings and lines on the back and the abdomen. The special thing about these creatures is the way the females carry the egg sacs with them, and once the eggs hatch, the siblings remain attached to their mothers' back until they are large enough to detach and start a life on their own. While the males move freely in their habitat, the females usually spend their entire lives in just one place, as they very seldom leave their nests. In terms of toxicity, the black widow spider has one of the most potent venoms in the animal world: it is actually fifteen times stronger than that of the rattlesnake for instance. Trapdoor spiders are not that easy to identify since there are other similar species for which they are often mistaken: the funnel-web spiders and the mouse spiders are the most relevant examples here. Without detailed analysis, a correct identification cannot be performed, and it is usually for the professionals to succeed in such daring attempts. For the protection of its eggs the female funnel web spider will bite fiercely, hence this is the period during which the chances of getting bitten are the highest. It takes only three weeks before the eggs hatch and two more months before they leave the nest. Females have an incredibly long lifespan up to ten years - while the males die within a year after they reach maturity.