Leeds and the Thousand Islands Leeds and the Thousand Islands Leeds and the Thousand Islands is a township in the Canadian province of Ontario, located within the United Counties of Leeds and Grenville. The township is located along the St. Lawrence River, and extends north into rural hamlets and villages. Formerly, this township was divided into three separate townships: Leeds, Landsdowne and Escott townships; these townships amalgamated to form the current township of Leeds and the Thousand Islands. The township comprises the communities of Berryton, Black Rapids, Brier Hill, Cheeseborough, Darlingside, Dulcemaine, Ebenezer, Eden Grove, Ellisville, Emery, Escott, Fairfax, Gananoque Junction, Gray's Beach, Greenfield, Grenadier
North American river otter length. A shorter trachea may improve air exchange and increase lung ventilation in diving mammals. Most mustelids, including otters, have specialized teeth, including sharp canines and carnassials that inflict lethal bites to prey. Also, North American river otters have large molars used for crushing hard objects, such as the shells of molluscs. An adult North American river otter has a total of 36 teeth. Additional premolars may be present. The dental formula is . North American river otters are active year-round, and are most active at night and during crepuscular hours. They become much more nocturnal in the spring, summer,