. . . . . "The baleen whales (Mysticeti), also called whalebone whales, comprise one of two parvorders of the artiodactyl infraorder Cetacea (whales, dolphins, and porpoises). They are the edentulous whales, characterized by having baleen plates for filtering food from water, rather than teeth like in the toothed whales (Odontoceti). Living species of Mysticeti have teeth only during the embryonic phase, while fossil Mysticeti had teeth before baleen evolved."@en . .