The western black widow. This spider is usually a glossy black, although it can appear to be brown or dark purple. It may have the red hourglass shape on its underside, but it might have two ...

Brown widow spiders are believed to have originated in either Africa or South America but they have spread all over the world. They were first seen in Florida in 1935.

Black widow spiders seem to be universally feared. But who's scared of a brown widow? The black widow should be quaking all eight of its boots, a new study suggests. In the United States, there's ...

And scientists say it may be taking over some native western black widow territory. IE 11 is not supported. For an optimal experience visit our site on another browser.

Brown widow spiders are believed to have originated in either Africa or South America but they have spread all over the world. They were first seen in Florida in 1935.

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 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.

Brown widow spiders are believed to have originated in either Africa or South America but they have spread all over the world. They were first seen in Florida in 1935.

Similar to the black widow, brown recluse spiders also have a distinct marking. These spiders — which are typically found in the Midwest or South — have a “dark violin-shaped (or fiddle ...

Brown widows — a closely related species — arrived in Florida around 1935, probably from South Africa. A single mother produces multiple egg sacs and potentially thousands of spiderlings.

When spotting the difference between brown and black widows, there are a few ways to differentiate between them. Brown widows live in open areas while black widows hide in dark corners and crevices.

Black widow spiders seem to be universally feared. But who's scared of a brown widow? The black widow should be quaking all eight of its boots, a new study suggests. In the United States, there's ...