There are 3 genera of pocket gophers in North America and close to 20 species. In southern Arizona, Botta’s Pocket Gopher (Thomomys bottae) is found in the low desert and up to the tip top of our sky islands. What a range and what a marvelous creature. 
I originally wrote Borderlands Jaguar while driving up to Tucson to do a presentation for the Center for Biological Diversity (http://www.biologicaldiversity.org/). I wrote it...
Santa Rita Acacia or Mariosousa millefolia is found in the borderlands of Arizona and Sonora between 3,000 and 5,000 ft. Hey, two different countries...
The bigtooth maple is no longer in its own family of Aceraceae, but is in Sapindaceae. Molecular taxonomy keeps us plant geeks on our...
