A tiny parasite is leading Australian scientists to rethink how they view Antarctic food chains, after a research showed these microscopic organisms were present in quantities far larger than ...

Adélie penguins are a vital part of the Antarctic food chain – they eat tiny creatures like krill and small fish, and are a source of food for predators like leopard seals and killer whales. By ...

Krill, small, shrimplike sea creatures, sit close to the base of the Antarctic food chain and rely on plankton that grows beneath sea ice. Less sea ice means less plankton and fewer krill.