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What do blue whales eat?

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The answer to this question is actually quite simple. Despite being the largest living mammal in the world the blue whales primary diet consists almost exclusively of krill, a small oceanic creature that generally measure in at a measly 1-2 centimeters; although a few species of krill can grow close to 6 inches in size. read more

An adult blue whale can eat up to 40 million krill in a day. The whales always feed in the areas with the highest concentration of krill, sometimes eating up to 3,600 kilograms (7,900 lb) of krill in a single day. The daily energy requirement of an adult blue whale is in the region of 1.5 million kilocalories (6.3 GJ). read more

Although the blue whale is a large animal, the fact of the matter is that it eats the same thing as most other similar creatures. This diet includes krill and small fish. For the blue whale to support its massive size, it must eat a large number of fish. read more

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Further Research

What do blue whales eat
howtodoright.com

What Do Blue Whales Eat?
www.bluewhales.org

What Do Whales Eat?
www.whalefacts.org