Even if you know nothing about this spider, a few key details probably come to mind: a visible red hourglass mark and a ...

Black widows are notorious spiders identified by the colored, hourglass-shaped mark on their ... The animals most at risk from the black widow's bite are insects—and male black widow spiders.

Red widow spiders have entirely red-brown bodies, with the exception of their black abdomen. ©Florida Division of Plant Industry Archive / CC BY 3.0 US, via Wikimedia Commons – Original ...

Venom 15 times stronger than a rattlesnake — the black widow spider. What happens when it bites? All black with a red hourglass, just bigger than a paperclip. Only the female can bite humans.

Most exposures to black widow spider venom are accidental, but in a rare medical case, the exposure was intentional.

The first signs of a black widow spider bite are usually a pinprick sensation, minor swelling, redness and a target-shaped sore, Medline Plus explains. Within 15 minutes to an hour of getting the bite ...

The brown widow spider (Latrodectus geometricus) is a lesser-known relative of the infamous black widow. The first brown widow spider was discovered in Los Angeles in early 2000. A member of the ...

MOST spiders are totally harmless – but a select few can give you serious trouble if they bite. Complications from some of Earth’s deadliest eight-legged biters include painful erections, ...

Probably the most famous of the deadliest spider lot, the black widow almost needs no introduction ... They're notable for having a red hourglass marking on their dark brown or black bodies.