Desert Collared Lizard vs. Greater Short-horned Lizard

Both live in southern Idaho. The Desert Collared Lizard has two black collars across the neck, a big broad head and tiny grainy scales; the Greater Short-horned Lizard has a flat, round body with short horns. A: Desert Collared Lizard, no horns: a big, broad head; Greater Short-horned Lizard, short, stubby horns. B: Desert Collared Lizard, slim, with a long, round tail; Greater Short-horned Lizard, flat and round, with a fringe of pointed scales and a short tail.

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

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