Fortunately, fatalities are fairly rare; the spiders are nonaggressive and bite only in self-defense, such as when someone accidentally sits on them. The animals most at risk from the black widow' ...

There are nearly 3,000 spider species in North America alone ... What they look like: The infamous black widow has a shiny black color along with their signature, red hourglass-shaped marking ...

The most common species of black widow spider in North America is Latrodectus mactans, which is a shiny black color. On its ...