Black widow spiders Latrodectus hesperus are considered the most venomous spiders in North America. Black widow spiders are the most feared and dangerous of all spiders. They are small shiny and black and they have a poisonous bite that can kill people. After mating, the female black widow spider may eat the male. spider's bite is much feared because its venom is reported to be 15 times stronger than a rattlesnake's. Latrodectus have very poor eyesight and depend on vibrations reaching them through their webs to find trapped prey or warn them of larger threats. The spiderlings /baby spiders are not poisonous but they are cannibals- eating each other.
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