Phrynosoma solare Regal Horned Lizard
Agua Fria National Monument, Yavapai County, ArizonaApril 15, 2005
Regal Horned Lizard (Phrynosoma solare) Regal Horned Lizard (Phrynosoma solare)
We were pulling our little RV onto the dirt road at Agua Fria National Monument, looking for a good place to camp with our dogs, when I spotted a lizardy motion ahead. This grumpy-looking horned lizard had made the mistake of moving. If it had remained still, there's no way I would have noticed it. I hollered "that's a horned lizard!" and Monica quickly stopped so I could rush out for a photo session.

Regal horned lizards are the largest U.S. species of horned lizard (Mexico, where all non-U.S. horned lizard species live, features the Giant Horned Lizard, Phrynosoma asio). One of the distinguishing features of Regal horned lizards is the set of four equally-spaced equally-long horns on the back of the head.

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