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What animals eat krill and plankton?

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The eight different species of whale that live in Antarctic waters may be the largest consumers of krill, both in terms of the size of the animal and the amount of krill consumed. For example, the blue whale, which is the largest animal on Earth, can eat as much as four tons of krill a day. read more

Krill and plankton are two groups of organisms found in the ocean. Krill are species of crustacean related to shrimp, and serve as a very important link in the food chain of the sea. Plankton consist of a larger group of organisms with much more variety, including bacteria, algae, protozoans, jellyfish and some species of cephalopods. read more

For example, krill move by pushing with their tiny legs, while other zooplankton gather together in a group and drift with the water. Zooplankton eat phytoplankton, bacteria and dead matter that is found in the water or on the ocean floor. In this way, zooplankton help to clean the water and in turn they end up as food for larger creatures. read more

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