Male elk shed their antlers once a year. Antlers grow during the summer and are shed in the late winter.
Male elks dig up the ground with their antlers and hooves and bugle -a loud, brassy sound- to advertise their health and size to females and to warn other males to stay away.
The flow of blood in an elk’s antlers also acts as ’air-conditioning,’ cooling the large male through the heat of the summer
While a male’s antlers are growing, they are covered with a thin, fuzzy skin called velvet. Blood flows through the antlers, helping them grow as much as 1 inch a day.