Rorquals

The rorquals are a genus of baleen whales containing eight species, the only other species in the is the . They range in size from the 150 tonne , the largest animal to have ever lived, to the relatively small nine tonne . Rorquals use baleen plates to filter out krill and small fish from large gulps of water. They sometimes use an extreme lunge feeding technique on bait balls of fish. They are found in all the world's oceans.

Source: http://www.bbc.co.uk/nature/life/Balaenoptera

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