What is North Americas most venomous spider?
Only two varieties of North American spiders are poisonous: the black widow and the brown recluse. Each causes dozens of illnesses and deaths each year. Black Widow Spider (Lactrodectus mactans) of North America is the most well known of the so-called deadly spiders. Other members of the Lactrodectus family are found throughout many temperate parts of the world, such as Australia where it is known as the Red Back spider and New Zealand where it is known as the Katipo spider. http://www.essortment.com/all/mostpoisonouss_rotk.htm A big question in determining the world’s most poisonous spider is whether the venom excreted by the spider would actually make humans sick. There are plenty of poisonous spiders that are highly toxic to their normal prey, but wouldnt do much to the people they bite. If youre only considering the world’s most poisonous spider to humans, that spider is not, as many think, the black widow. Black widow bites are rarely fatal. Death may occur if the person who is bi
