Just a half hour drive from downtown Tucson a wilderness awaits in the Rincon Mountains of Saguaro National Park on the Tanque Verde Ridge Trail. 
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Initially the two Arizona state tree palo verdes were the genus Cercidium. That’s the way I learned them and that’s the genus name you’ll...
I first learned this snake as the western hog-nosed snake (Heterodon nasicus). It’s now called the Mexican hog-nosed snake (H. kennerlyi). And this is...
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