You may even find brown widow nests in buckets, mail boxes, entry corners, closets, garages and even in vegetation like shrubs and tree branches. Most bites occur when one accidentally stick their hands into such secluded areas and corners or when the spider gets pressed against the skin. Wearing some rubber gloves when cleaning up around the house will help you avoid being exposed to a direct contact with the brown widow spider. The favorite habitat of the funnel web spider consists of the moist area under rocks, crevices, rotten trees, holes and tree bark. For the funnel web spider varieties that live in gardens, shrubs are the perfect place to make their nests. There is plenty of room to make the silk lines for their burrow: these threads help the spiders catch their prey, but they also make a great warning means that signal danger or the presence of mates. A special feature of the wolf spider is the position of the eyes on the body; the four pairs are arranged in very unique ways, with four small eyes in a bottom row, two large ones placed in the middle and two middle-sized ones on the top row. The specificity of their vision organs is the one that ensures the survival of the species since the wolf spider depends on the eyesight to hunt. Though the color specific to the species is brown, there are yellow and black varieties too, nevertheless, these color patterns are not a general characteristic of the brown recluse spider. The color variety may be absent, just as the violin marking can be hardly visible. Nevertheless, there is one other element that clearly makes the recognition of the brown recluse spider possible. Thus, if you get a huntsman spider on your clothes, you'll find it pretty difficult to shake it off. Far from being seen as a threat to humans, the huntsman spider is pretty useful since it mainly feeds on insects. Nevertheless, the Australian variety of the species has been reported to inflict serious bites that cause not just pain and inflammation, but vomiting episodes, fever, headaches and even changes in the heart rate. All spiders depend on their venom for survival: venom is the way to hunt and defend themselves, but from the many thousands species only about two hundred actually represent a threat for human health. The great thing about these creatures is that they have adapted to the harshest of environments from the desert and the tropics to the Arctic areas where they can live underwater.