Another member of the Pisaurina family, it's no surprise dark fishing spiders (Dolomedes tenebrosus) can sometimes also pass off for a wolf spider. However, unlike its doppelganger, the fishing ...

The first signs of a black widow spider bite are usually a pinprick sensation, minor swelling, redness and a target-shaped sore, Medline Plus explains. Within 15 minutes to an hour of getting the bite ...