Cutthroat Trout are freshwater fish in the salmon family, easily identified by the distinctive red, orange, or yellow slash marks on the underside of their lower jaw, along with their slender bodies and spotted coloration that varies by habitat. They are native to western North America, primarily west of the Rocky Mountains, where they inhabit cold, clean streams, rivers, lakes, and, in some cases, coastal and estuarine waters. Cutthroat Trout are opportunistic feeders that primarily eat aquatic insects such as mayflies, stoneflies, and caddisflies, as well as terrestrial insects, crustaceans, and small fish. They can also be identified by black spots on the dorsal and caudal fins, a bright red slash on the lower jaw, a mouth that extends past the eye, and the absence of white-tipped fins or spot halos. Source: Government of Alberta (https://www.alberta.ca/cutthroat-trout.aspx)