Antarctic krill

Antarctic krill are small, shrimp-like crustaceans that inhabit the cold waters around Antarctica. They are a vital part of the ocean ecosystem, serving as a primary food source for many marine animals such as whales, seals, penguins, and fish. Krill feed mainly on algae and phytoplankton, converting tiny plant material into a rich source of energy. They gather in massive swarms, sometimes covering large areas, which helps sustain the Antarctic food chain. Due to their abundance and importance, krill are also harvested commercially for use in aquaculture, animal feed, and dietary supplements.