A four-week-old coyote pup discovered motionless in an Arizona garden has survived an ordeal that wildlife rescuers say was among the most severe cases they have encountered. Covered from nose to tail in hundreds of cholla cactus spines, the tiny animal was unable to move and likely would not have survived without intervention. The three-pound pup was found alone by a homeowner in Surprise, Arizona, who noticed the young coyote stranded in their…