Colorado River Toad

The Colorado River Toad is the largest western toad.  It is chunky and short-legged, with dark olive-green leathery skin above and a smooth creamy-white underside.

Fast Facts

  • It lacks a vocal sac, therefore has a weak and low-pitched call.
  • The Colorado River Toad remains underground during the heat of the day.
  • The Colorado River toad is sometimes called the Sonoran Desert toad.


Scientific name

Incilius alvarius
Range  Western United States
Conservation status Least concern
Diet Carnivore
Zoo location Herpetarium

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