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 ...

The penguin poop didn’t only influence krill movements. In another phase of the experiment, researchers noticed the ...

Whales with baleen, a filter-feeding system, eat smaller prey like krill, zooplankton and small fish by swallowing large gulps of water and straining it through the baleen plates. Baleen whales ...

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 foul stench of penguin poop sets Antarctic krill on edge. In lab experiments, the mere scent of penguin droppings — or guano — sent krill scrambling for escape, researchers report March 20 in ...