MANATEES AND DUGONGS
Summary:
I'd always grouped the dugongs and manatees together. There are slight differences between these two groups. Both groups belong to the order Sirenia.
They shared a cousin in the Steller's sea cow, Hydrodamalis gigas, but that piece of their lineage was hunted to extinction by our species in the 18th century. Dugongs have tail flukes with pointed tips and manatees have paddle-shaped tails,
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