There are about 80 species, or types, of whale. The blue whale is the largest type. It is so big that it is the largest animal of any kind.
whale - Kids, Britannica Kids
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Narwhals, Tusked Whales of the Arctic, See With Sound. Really Well. - The New York Times
whale shark - Kids, Britannica Kids
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Narwhal Facts and Pictures
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whale - Students, Britannica Kids
whale - Students, Britannica Kids
whale shark - Students, Britannica Kids