The most infamous is the black widow, with its shiny black body and notable red hourglass marking. The red colorations on many spiders can appear almost orange. Therefore, orange-and-black and red ...

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

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.

Black widows are notorious spiders identified by the colored, hourglass-shaped mark on their abdomens. Several species answer to the name, and they are found in temperate regions around the world.