Thousand Islands Thousand Islands The Thousand Islands constitute an archipelago of 1,864 islands that straddles the Canada–US border in the Saint Lawrence River as it emerges from the northeast corner of Lake Ontario. They stretch for about downstream from Kingston, Ontario. The Canadian islands are in the province of Ontario and the U.S. islands in the state of New York. The islands range in size from over to smaller islands occupied by a single residence, or uninhabited outcroppings of rocks. To count as one of the Thousand Islands, emergent land within the river channel must have at least of land above water
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,