The Black Widow Spider There are three distinct species of the black widow spider in the United States and all three are poisonous. There is the Southern black widow, the Western black widow, and the Northern black widow. While these spiders are not large, their venom is extremely dangerous to humans and other animals.Are black widow spiders really dangerous?
The venom of the black widow spider is 15 times as toxic as the venom of the prairie rattlesnake. Only the female Black Widow is dangerous to humans; males and juveniles are harmless. More than 35,000 spider species of spiders occur in the World.What does a Black Widow do to its prey?
Black widows eat flies, mosquitoes, grasshoppers, beetles and caterpillars , according to National Geographic . After the prey is ensnared in the web, the black widow uses its "comb feet" to wrap the prey in silk. Then, the black widow punctures its prey with its fangs and injects digestive enzymes that liquefy the corpse .