From mountaintops to rock faces and dry caves, Organ Pipe Cactus Natio nal Monument has the most diverse sampling of plants and animals found in the Sonoran Desert today. First, explore a dry cave for signs of a ncient life and discover forensic evidence used to re-create the life and death of a javelina, a native, wild, pig-like creature only found in the United States. Then, take an in-depth look at the various habit at niches of Sonoran animals. Learn how the indigenous Tohono O'odham people have used desert plants for food and medicine for generations.