The most poisonous spider to humans is the Brazilian wandering spider or the banana spider, but these spiders don't exist in the United States. Learn about the most poisonous spiders in the U.S., such as brown recluses and black widows, with help from a veterinarian in this free video on poisonous spiders.
Writer Bio
James R. Talbott is a staff veterinarian at Belle Forest Animal Hospital and Kennel in Nashville, Tennessee.
