blue whale
US /bluː weɪl/
UK /bluː weɪl/
1.
a baleen whale, Balaenoptera musculus, the largest living animal, typically growing to 20–30 metres (66–98 feet) long and weighing 100–200 tonnes, with a long, slender, bluish-grey body.
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The blue whale is the largest animal on Earth.
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Conservation efforts are crucial for protecting the endangered blue whale population.