Pack Ice Type B killer whales (Orcinus orca), finding a leopard seal (Hydrurga leptonyx), on an ice floe in Antarctica, Polar Regions

orcinus orca leopard seal hydrurga leptonyx ice floe antarctica polar regions hunting wildlife marine biology ocean ecosystem predators food chain seal hunting cold climate aquatic life orca behavior icebergs marine mammals biodiversity southern ocean arctic exploration animal interactions icy waters seal predator oceanography icy habitat underwater hunting antarctic habitat animal behavior nature seascape ice formations aquatic predators ecosystem balance wildlife conservation natural habitat underwater scene frozen landscape marine life ecological balance wildlife observation ocean conservation orca habitat seal behavior apex predators marine ecosystems hunting strategies wildlife interactions seal haul out icy regions