Mexican Spadefoot vs. Woodhouse's Toad
Both breed in rain pools and stock tanks across eastern and southern Arizona after summer storms. A: Vertical, cat-like in the Mexican Spadefoot; horizontal oval in the Woodhouse's Toad. B: No big glands in the Mexican Spadefoot; a long, raised gland behind each eye in the Woodhouse's Toad. C: No stripe; dark spots and small red-tipped warts in the Mexican Spadefoot; a whitish stripe down the middle of the back in the Woodhouse's Toad. D: A black, wedge-shaped spade for digging in the Mexican Spadefoot; no black spade: only small tubercles in the Woodhouse's Toad.
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