Dead southern elephant seal (Mirounga leonina) pup being eaten by an Antarctic skua on South Georgia Island, Southern Ocean

mirounga leonina pup antarctic skua feeding southern ocean wildlife ecosystem marine life scavenger nature animal behavior pinniped dead seal seabirds coastal environment natural carrion predator scavenging conservation sea ecology mating packs interaction island habitat diet interactions bird predators ecological balance cold climate selection observation shore frenzy mortality environmental adaptation dynamics