Blue whales eat krill - tiny, shrimp-like crustaceans that live throughout Earth's oceans. The huge whales can eat up to four tonnes of krill every day. Blue whales lunge through large swarms of krill ...

Each species has a favourite food. And no matter where they are or what they eat, whales are almost always on the hunt for a tasty meal. Blue whales are the largest animals ever to have lived. These ...