Mesoamerican Slider vs. Rio Grande Cooter

Both live in the resacas and the Rio Grande in the Lower Valley. A: A broad yellow-orange stripe behind the eye in the Mesoamerican Slider; only thin yellow stripes on the head in the Rio Grande Cooter. B: A big dark-centred eye-spot on each side plate in the Mesoamerican Slider; concentric (bull's-eye) rings on each plate in the Rio Grande Cooter. The Rio Grande Cooter is mostly a river turtle; the Mesoamerican Slider lives mainly in resacas, ponds and canals.

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

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