Update: These are madrean alligator lizards! I did not see the legs on the darker one.
Lizard vs snake under my Jeep tire. When I first saw this, I thought it was a pair of lizards mating. But no, it looks like a fight to the death. The lizard has the snake’s neck in its jaws. Gary poked them gently with a stick to free the snake, but the lizard ran into the bushes with its prize.
In our Prescott, Az driveway.