Brown widow spiders (Latrodectus geometricus) have caused population declines among several black widow species in the U.S. Black widow spiders in the U.S. are being killed off by an unexpected rival: ...

Of the over 46,000 known spider species, only about 200 have venom potent enough to be of medical concern. This is assuming, of course, that an individual isn’t allergic to specific components of ...

Black widow spiders across the southern United States are getting eaten up by brown widows, their lesser-known cousins, according to new research investigating the relationship between the two ...

In parts of the southern US, black widows are being supplanted by their more aggressive arachnid relatives: brown widows. However, residents of the region can take some comfort in knowing that brown ...

SDE BOKER, Israel, July 2, 2024 – Invasive brown widow spiders across three continents were highly infected with a single strain of Rhabdochlamydia, a bacterium that is related to major pathogens of ...

ST. PETERSBURG, Fla. — The U.S. National Weather Service in the Tampa Bay area spotted what seemed like a black widow, only for it to turn out to be a brown widow. How were they able to tell the ...

Black widow spiders are being killed off in the U.S. The culprits are actually their cousins: brown widow spiders. Though the reason behind the killings is unknown, a new study suggests. Brown widow ...

Black widow spiders are being killed off in the U.S. The culprits are actually their cousins: brown widow spiders. Though the reason behind the killings is unknown, a new study suggests. Brown widow ...

Black widow spiders contribute to the environment by killing a significant amount of pests that cause harm to crops and spread disease. However, their venom is highly toxic and can impact human health ...

A brown widow spider. Scientists are trying to learn more about this relatively new species and where it came from. (Photo by Mark Boster/Los Angeles Times via Getty Images) What would Sigmund Freud ...