Dugongs are sirenians and therefore related to manatees. Though they resemble cetaceans (whales, dolphins and porpoises), dugongs and manatees are believed to be descendants of land mammals that make them more closely related to elephants than whales.
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Answer:
Dugongs are sirenians and therefore related to manatees. Though they resemble cetaceans (whales, dolphins and porpoises), dugongs and manatees are believed to be descendants of land mammals that make them more closely related to elephants than whales.