Mexican Burrowing Toad vs. Western Narrow-mouthed Toad

They meet in southern Texas: both are plump with small pointed heads and come out after rain. A: A red-orange stripe down the middle of the back in the Mexican Burrowing Toad; plain olive to grey, with no line down the back in the Western Narrow-mouthed Toad. B: Dark purplish-black with scattered orange spots in the Mexican Burrowing Toad; pale olive to grey with only a few small black dots in the Western Narrow-mouthed Toad. The Western Narrow-mouthed Toad is small (under 1.6 in) and buzzes like a bee; the Mexican Burrowing Toad moans.

Photographs via iNaturalist under Creative Commons licences; the photographers are credited on the sheet.

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