How do whales find krill?

They are basically giant filter feeders. They usually swim through the ocean feeding on tiny krill with some whales even eating tiny fish. They follow the same path way every year which would allow them to come across huge groups of krill. In the winter though they usually live off of fat reserves. read more

Blue whales and their baleen whale cousins are known to use "bubble netting," a technique in which the whales, sometimes swimming in teams, will dive below a krill swarm, sending up an enormous fountain of bubbles to alarm and displace the group. read more

Krill Krill are found in every ocean of the world and are small crustaceans that exist near the bottom of the food chain. read more