A few nice endangered animal species images I found:
Upper Sonoran Life Zone - Grand Canyon North Rim
Image by Al_HikesAZ
The National Park Service has made the Cape Royal trail handicap accessible and placed signs and markers explaining the biology of this part of the Walhalla Plateau. This trail sign describes the Upper Sonoran Life Zone. It reads: "Notice how the vegetation here differs from the ponderosa pine forest you drove through. The vegetation on Cape Royal is characteristic of a milder climate. Walk along the trail and learn the plants of this community and the important roles many played in the lives of Southwest Indians."
"The Park contains several major ecosystems. Its great biological diversity can be attributed to the presence of five of the seven life zones and three of the four desert types in North America. The five life zones represented are the Lower Sonoran, Upper Sonoran, Transition, Canadian, and Hudsonian. This is equivalent to traveling from Mexico to Canada. The Park also serves as an ecological refuge, with relatively undisturbed remnants of dwindling ecosystems (such as boreal forest and desert riparian communities). It is home to numerous rare, endemic (found only at Grand Canyon), and specially protected (threatened/endangered) plant and animal species. Over 1,500 plant, 355 bird, 89 mammalian, 47 reptile, 9 amphibian, and 17 fish species are found in the park." Info from www.nps.gov/grca/naturescience/index.htm
I spent a long weekend hiking, backpacking and camping on the North Rim and down the North Kaibab Trail.
