Apalachicola Waterdog vs. Lesser Siren

Lesser Sirens share the Apalachicola Waterdog's creeks and backwaters. A: Four legs, front and back in the Apalachicola Waterdog; only two small front legs; no hind legs in the Lesser Siren. B: Short and stout, under 7 in in the Apalachicola Waterdog; long and eel-like, to 27 in in the Lesser Siren. Both keep bushy gills for life.

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

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