Are Toads Toxic to Dogs! For the most part, toads found throughout the United States are harmless little creatures that coexist nicely with other wildlife and household pets. But a few toads happen to secrete a poisonous venom that can cause serious problems for dogs.
The 2 most common toads found in the U.S. that are dangerous to dogs are:
Colorado River Toad – also known as the Sonoran Desert Toad, it’s mostly found in the southwestern United States (from Arizona to southern California) during the months from May to August. It averages in size from 4 to 7 inches in length. Its venom can poison a dog.
Giant Toad– also referred to as the Marine Toad or Cane Toad, it’s mostly found in south Texas and Florida and averages 4 to 6 inches in length. (The record is 15 inches from nose to butt.)