pinniped pinnipedgroup of mammals that includes seals, sea lions and walruses Related Articles: Mass Stranding – June 4, 2017How do marine mammals hear?Audio GalleryWebinar Archive: Introduction to Underwater AcousticsDetection Threshold in Animal HearingReference List: Animals and SoundCalifornia Sea LionHearing in Cetaceans and Sirenians, the Fully Aquatic EarHearing Loss in MammalsHow is sound used to protect marine mammals? Chris Knowlton2017-12-15T17:39:52-05:00