Of these, 45 showed in-vitro neutralization of the black widow spider’s alpha-latrotoxin neurotoxin. According to the study, one antibody called MRU44-4-A1, showed particularly high neutralization.

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 ...

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.

Black Widow Spiders Are Being Killed Off by Non-Native Brown Widows Despite their reputation as fearsome predators, black widows are on the defensive due to attacks by their cousins, a study shows ...

And widow spiders, particularly black widows, certainly don't need to be unfairly villainized. Of course, you don't want to be bitten, because their venom can cause minor to severe symptoms.

Arguably one of the most iconic spiders in the world, the black widow spider (Latrodectus mactans) is an arthropod with an unmistakable identity.This jet-black arachnid ranges from 0.2 to 0.5 ...

How to Identify a Black Widow Spider There's probably a specific image that comes to mind when you picture a black widow spider: A large, shiny, black spider with a red hourglass on its belly.