Animal Description:

Dall sheep are a species of large, white, hoofed mammals that live in the open alpine ridges, meadows, and steep slopes of the mountain ranges of Alaska and western Canada. They are known for their large, curled horns, which are longer and skinnier than those of bighorn sheep.

Rams develop horns at about three years old, which grow steadily from spring to early fall, and the start-and-stop growth of horns results in a pattern of rings called annuli, which can help determine age. Rams are larger than ewes and typically weigh between 160 and 180 pounds at maturity, while ewes weigh approximately 100 to 110 pounds on average, and can live to be 12 to 16 years old.