An adult bull among a pod of about 20 killer whales (Orcinus orca) in Antarctic Sound near the Antarctic Peninsula, Polar Regions

killer whale orca adult bull antarctic sound pod marine mammals wildlife social behavior hunting antarctic peninsula ocean waters cold climate cetacean nature aquatic ecosystem predator marine life orcinus orca play explore group fins surfacing interaction sea biodiversity conservation underwater indigenous research feeding natural habitat mother calf environment scientific study marine research arctic antarctica behavior tourism diversity oceanographic coastal marine biology ecology wildlife observation animal behavior