All three species of the black widow spider that can be found in the U.S. have been established in the Hawaiian islands as ...

Black widow venom is about 15 times as potent as a rattlesnake's, yet these charismatic spiders generally aren't a threat to humans. It's highly unlikely that a black widow spider will bite you ...

Although the common name 'black widow spider' is most commonly used to refer to the three North American species best known for their dark coloration and red hourglass pattern, it is occasionally ...

Biologists in regions of the Southern U.S. noticed that the iconic black widow spider — known for its telltale hourglass mark and venomous bite — often disappeared when a different species ...

The noble false widow spider (Steatoda nobilis), already considered one of the world’s most invasive arachnids, has ...

The average brown recluse spider is much smaller than the average black widow spider. For example, brown recluses grow ...

The western black widow, the only spider species that can harm a person with toxins, is entering the reproductive phase of its life cycle and is more noticeable this time of year.

As for the brown widow spiders killing their cousins, scientists have yet to figure out why. There’s no competing for resources and no other spider species have been impacted by the brown widow ...

If you suspect you’ve been bitten by a black widow spider, seek immediate medical attention. While these bites typically aren’t life threatening, they require quick treatment to avoid ...

Brown widow spiders, which are invasive to North America, are wiping out black widow populations in the U.S. by aggressively attacking them for no clear reason, a new study shows.

Stock image of a black widow spider. The black widow is one of the most venomous spiders in North America. KAdams66/Getty "An individual spider doesn't contain enough venom to kill a human ...