Walruses have vocal cords.
Walruses produce sounds both above and below water.
Walruses are among the most vocal of the pinnipeds. They produce growls, grunts, barks, soft whistles, rasps, and clicks. Male walruses produce bell-like sounds below water. These sounds are not produced by the vocal cords but originate from air sacs, which extend from the pharynx. Calves bellow if disturbed.