Deer Island (Thousand Islands) of the Island" Building Ruins - Outlook Building Ruins - Stone Cottage Ruins - Yale University Skull & Bones Society Lodge - The island is covered in indigenous trees, made up of mostly White Pine, Black Oak, Hemlock, and Sugar Maple — typical of the Canadian Shield — as is much of the surrounding area. There are several abandoned ruins located throughout the island, now overgrown and barely visible beneath the growth. Deer Island (Thousand Islands) Deer Island is one of the American Thousand Islands. It lies between mainland Canada and United States, within the Saint Lawrence River, in the
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,