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.

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

Male and female black widow spiders may belong to the same species, but they differ in many significant ways. Female black ...

Male and female black widow spiders exhibit striking differences. Females are larger, with glossy black bodies and a red hourglass marking, while males are smaller and drabber. Females are known ...

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.