The Woodhouse's Toad, (Bufo woodhousii) grows to a moderate size of 4 inches. It is a true toad native to the United States and Mexico.

It is commonly found in US mountain areas - Rocky Mountain Toad; East Texas Toad in Texas and Southerwestern Woodhouse's Toad in Arizona and New Mexico.

Bufonidae has about 500 species and is the family of the true toads.

True toads are widespread on every continent except Australia and Antarctica, inhabiting a variety of environments, from arid areas to rainforest. True toads are toothless and generally warty in appearance.ntain an alkaloid poison which the toads excrete when stressed. Male toads possess a Bidder's organ. Under the right conditions, the organ becomes an active ovary and the toad, in effect, becomes female. - Wikipedia -