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

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' ...

Alaska is the only state that doesn't have a type of black widow spider. Although black widow spider bites can be dangerous, they're rarely fatal. Still, you could experience uncomfortable muscle ...