Amazing Facts About River Dolphin
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River dolphins are a polyphyletic group of fully aquatic mammals that reside exclusively in freshwater or brackish water
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They are found in rivers of south-central Asia, China, and South America and in the coastal waters of Brazil, Argentina, and Uruguay
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River dolphins do not make sensational leaps and dives as they are less athletic than most other dolphins
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The largest species is the Amazon pink river dolphin, also referred to as "boto" or "bufeo"
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They have a longer and skinnier snout and a round, bulbous forehead
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They are the only dolphin species known to have molar-like teeth that help them masticate their food before swallowing
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They don't swim together in large groups and the river basins where they reside are quite dark and murky
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They can change color, often turning bright blue or pink during mating season or when excited
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A full-grown dolphin can grow up to 9 feet long, weigh up to 181 kg, and live up to 30 years
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