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.
Carbonaceous fossils are found in rocks up to 2 billion years old. They represent a variety of organisms including colonies of prokaryotes, single-celled eukaryotes, and fossil seaweeds. In Canada, the carbon fossils Tawuia and Chuaria are found; they may have been large eukaryotic cells. Chuaria circularis (top image at left) and Tawuia dalensis (bottom image at left) are found in approximately 800 million year old rocks exposed west of Norman Wells, NWT.