If you're bitten by one of these spiders, you will need medical attention to treat the bite and its effects. Black widow spiders are found primarily in the southern and western areas of the U.S ...

The black widow is perhaps the most infamous poisonous spider ... Though not dangerous, their bite can deliver mild venom effects similar to a bee sting, making them a low-risk species. While some of ...

The black widow is perhaps the most infamous poisonous spider ... Though not dangerous, their bite can deliver mild venom effects similar to a bee sting, making them a low-risk species. While some of ...

Although their bites are rare and less severe than those of black widow spiders, these arachnids are still worth watching out for — and learning about, especially if you live in southern ...

The bite of a black widow can be extremely toxic and may cause nausea, excess sweating, tremors, labored breathing, restlessness, increased blood pressure and fever. In the worst cases ...

Most exposures to black widow spider venom are accidental, but in a rare medical case, the exposure was intentional.

The first brown widow spider was discovered in Los Angeles in early 2000. A member of the cobweb spiders, it is now found in warm, urban areas worldwide. Although their bites are rare and less severe ...

Immature and male brown widow spiders don't bite at all. Brown widows are much less aggressive than black widows — they prefer to play dead rather than bite and they don't defend their webs.