Black widows are vanishing from certain regions of the U.S. Scientists found that a competitor, the brown widow, may largely be to blame for the iconic arachnid's decline.

Black widow spiders are part of a broad genus found in North America and are poisonous. Here's where you're most likely to find them in your home.

Black widow spiders are no stranger to Colorado, but does it seem like there are always more around this time of year? The weather gets cooler and temperatures start dropping below freezing, so it ...

Black widow spiders are among the world’s most venomous spiders, with a toxin that attacks the nervous system. While their bites can be treated with an antidote derived from other animals, a ...

Black widow spiders, distinguished by their shiny black bodies and red hourglass markings, are one of the most venomous spiders in North America. However, their bite is rarely fatal to humans.

This will get your spidey sense tingling: There’s a type of spider that looks like a black widow—but packs a much less potent bite. False widow spiders resemble their infamous cousins, black ...

Only two types of spiders in north-central Texas and southwestern Oklahoma have powerful enough venom to be of medical importance. These are the Black Widow and Brown Recluse spiders.

Scientists have observed brown widow spiders increasingly displacing black widows. A new study shows the rivalry up close.

Black widow spiders are active in California. Here’s what the arachnids look like, where to find the pests and what to do if you’re bitten.

While black widow venom contains potent neurotoxins, these spiders are not inherently aggressive and typically only bite in self-defense when they feel threatened.

The black widow spider rarely bites people, but when it does, its venom can cause an unpleasant reaction. It is not usually fatal, but it can be dangerous to children, older people, and during ...