Please correct me if I'm wrong, but I think this is a prairie dog.
On my desert walk today, I beheld... A pop of hue in a sandyscape; Wild and solitary, groundward branching; Soft and prickly, mixing it up; Pink and yellow floweret; Little cottontail, blending in, His steady gaze a bit mystifying; An ensemble of leafy violet and fluffy sky.
This past Monday, the kids and I revisited Tohono Chul Park. I loved this beautiful tree with light yellow pom pom blossoms. Later I found out its name- Sweet Acacia. This guy is a Desert Spiny lizard.