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. Without being venomous, the wolf spider bite can cause a bit of trouble for more sensitive people. In the aftermath of such events, the funnel web spider redoubles its level of activity so as to get its life back on track. The size of the species varies from 1.5 to 4.5 centimeters for the body length; they are mono-color, dark brown usually, without any patterns at all. The only distinct element of the male funnel web spider is a swelling on the second leg and the spinnerets located at the end of the abdomen. When you see a brown recluse spider for the first time it is impossible not to notice how much it resembles a violin; it is actually known as the fiddle-back spider or the violin spider for the color pattern it has on the back and bottom areas. 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. This precaution measure is only valid in case the spider bite is located at the level of the arms or legs. One other thing you can do is to put some ice or cold water on the bite in order to reduce the discomfort and alleviate the pain. You should be concerned when the symptoms do no improve within 24 hours and there is numbness or increase in pain. The black widow spider is not capable of killing a bird that would eat it, but the digestive sickness that would follow, will be definitely enough to make it avoid attacking the black widow again. The female black widow spider is more venomous than the male, and it is she the biggest threat to predators. Placed above their home web, such silky defenses lower the vulnerability of spiders in front of aerial predators. There are other spiders which do not depend on webs for survival, and one famous example of such a species is the giant tarantula. Though they can produce silk threads, they are however hunting their prey down by using the ambush method.