Answer:
More than 6,000 amphibian species exist worldwide, with approximately 300 of them found in the United States.
Step-by-step explanation:
American Toad (Anaxyrus americanus) ...
Wyoming Toad (Anaxyrus baxteri) ...
Western Toad (Anaxyrus boreas) ...
Arroyo Toad (Anaxyrus californicus) ...
Yosemite Toad (Anaxyrus canorus) ...
Great Plains Toad (Anaxyrus cognatus) ...
Green Toad (Anaxyrus debilis) ...
Black Toad (Anaxyrus exsul)
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