Blue whales are not only the largest animal on earth today but the largest known animal ever to have lived on earth. 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 ...

A new study shows that the mere presence of poop prompted the crustaceans to launch into evasive maneuvers. New research ...

Caption A blue whale, the largest vertebrate animal ever in the history of life, engulfs krill off the coast of California. Photograph authorized under National Marine Fisheries Service permit ...

Krill and shrimp may have vaguely similar body shapes, but they're separated by a world of differences in terms of anatomy ...

These colossal cetaceans often reach 30 metres in length and can weigh up to 180 tonnes - so they need to eat a lot to keep them swimming. But despite their enormous size, blue whales feed almost ...

The whales eat krill and fish that can aggregate in massive schools. However, their diets are distinct. While blue whales only eat krill, humpback whales eat krill and small schooling fish such as ...

A new first-of-its kind study found the marine mammals vocalized less after a marine heat wave decimated their prey, making whale songs a barometer of the effects of climate change on ocean ...

Blue whales can eat as much as 6 tons (5.4 metric tons) — about the same weight as an African elephant — of krill every day. Blue whales are massive even at birth. When they are born ...

The length of a blue whale - 30 metres - is equivalent to a class of children or three buses. Whales eat krill. Each mouthful is 40,000 litres. A blue whale is equivalent in weight to 25 elephants ...

When krill numbers fell again, so did the whales’ songs. Unlike blue whales, humpback whales can also eat anchovies and sardines, and their choruses returned when there was a population ...