Blue whales — the planet’s largest animal — subsist on tiny crustaceans called krill. As populations of this food source recovered from the marine heat wave, detections of blue whale singing ...

Whales are a group of mammals that live in oceans. They include some of the largest animals on Earth. The blue whale is the ...

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 ...

To sustain their huge bodies, blue whales, which are the largest creatures on Earth, feed on huge amounts of krill. A hundred ...

a major consumer of krill, are in recovery. Fin whales – the second largest baleen whale after the blue whale, had been hunted to near extinction. Now they are growing in number, returning to ...

leading to more singing across all three whale species. However, when krill numbers declined again, blue whales, which feed exclusively on krill, sang less. At the same time, fish population ...

krill and small fish — out of the water. Examples of baleen whales include blue whales, fin whales and humpback whales. Toothed whales usually eat larger prey, which can include fish ...