While tail docking is an effective preventive method in some cases, if it is not carried out correctly it may result in other problems such as ill thrift or rectal prolapse. In lambs, tail docking at the distal end of the caudal folds tends to minimize docking effects on incidence of rectal prolapse.
Carbon Glacier is located on the north slope of Mount Rainier in the U.S. state of Washington and is the source of the Carbon River. The snout at the glacier terminal moraine is at about 3,500 feet (1,100 m) above sea level, making it the lowest-elevation glacier in the contiguous United States.
Glacier Bay is a collection of fjords and inlets, home to 16 active tidewater glaciers, all five species of Pacific Salmon and 25 percent of the total number of bird species in all North America. It is located in the middle of Glacier Bay National Park and Preserve, a 3.2 million acre sanctuary. Rangers come on board during the hours you spend in the Bay to explain the various glaciers you will see and the natural history of the region. In just over 200 years, the ice of Glacier Bay has retreated 65 miles. When Captain George Vancouver visited in 1794, the entrance to the Bay was a wall of ice. Entrance to Glacier Bay is closely guarded in order to protect the delicate environment, so cruise lines must apply for permits to visit.