Best Anaxyrus
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The American Toad (Anaxyrus americanus) is a widespread toad of eastern North America that secretes bufotoxin from large parotoid glands as a defense against predators.
Anaxyrus canorus, endemic to California's Sierra Nevada above 6,000 feet, is listed as threatened under the U.S. Endangered Species Act due to chytrid fungus and drought.
The Western Toad (Anaxyrus boreas) is a wide-ranging species across western North America that lacks a vocal sac and communicates with soft chirping sounds rather than loud calls.
The Great Plains Toad (Anaxyrus cognatus) is a large toad of the central US and Mexico known for its very loud prolonged trill and mass breeding events triggered by heavy rain.
Fowler's Toad (Anaxyrus fowleri) is an eastern North American species distinguished from the American Toad by its call and by having three or more warts per dorsal dark spot.
The Red-spotted Toad (Anaxyrus punctatus) is a small flattened toad of arid southwestern North America, recognized by distinctive reddish or orange spots on its back.
Woodhouse's Toad (Anaxyrus woodhousii) is one of the larger common toads of central and western North America, named after American naturalist Samuel Washington Woodhouse in 1852.
The Southern Toad (Anaxyrus terrestris) is endemic to the southeastern coastal plain of the United States, distinguished by prominent paired cranial crests and knobs on the head.
