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Western Fence Lizard vs. Desert Horned Lizard

Both live in southern Idaho. The Western Fence Lizard has large, keeled, pointed back scales and yellow-orange on the rear of the thighs; the Desert Horned Lizard has a flat, round body with a row of pointed horns. A: Western Fence Lizard, no horns: an ordinary lizard head; Desert Horned Lizard, pointed horns at the back of the head. B: Western Fence Lizard, slim, with a long tail; Desert Horned Lizard, flat and round, with a fringe of spiky scales and a short tail.

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Western Fence Lizard

Sceloporus occidentalis

Desert Horned Lizard

Phrynosoma platyrhinos
Western Fence Lizard vs. Desert Horned Lizard: comparison sheet with the differences marked

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

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