Complex sentence: Magellanic Penguins feed in the water, preying on cuttlefish, sardines, squid, krill, and other crustaceans, and ingest sea water with their prey.
Split into simpler sentences: Magellanic Penguins feed in the water, preying on cuttlefish, sardines, squid, krill, and other crustaceans. Magellanic penguins ingest sea water with their prey.