The consequences of the exposure to the venom of hobo spiders are less serious than the bites of the brown recluse spider for instance. However, people who have been bitten may expect to experience headaches and a general feeling of malaise. Sometimes, even vision problems have been reported, but under such circumstances you should contact the doctor right away and receive professional help. 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. A test has been created to identify the wound and the venom type, but the practice is not part of the medical routine yet. Lots of doctors recommend a minor surgical intervention in the tissue area affected by the venom, yet the excision could impair the recovery as such and may increase the risk of scarring. 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. In North America for instance, poisonous spider identification is a thumb rule for anyone living close to such creatures; there are not too many species of the kind, hence, once you learn how to set them apart you can relax and feel a lot safer. House species are the first to require proper spider identification since they are the first we come into contact with, and, on certain occasions, it is pretty difficulty to tell them apart. 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. Warmth and humidity make the perfect habitat for the funnel web spider, nevertheless, they also suffer from heavy rains that destroy their burrows.