What Are Some Facts About the Black Widow Spider?
The black widow spider is the most venomous spider in North America, and lives in temperate regions such as the United States, Australia and Europe. The female spider is approximately 1.5 inches in length when mature, and features a red hourglass shape on the underside of its abdomen. Male black widows are about half the size of females, and feature orange or brown markings on their leg joints. Male black widows have red or pink-colored markings on their backs.