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The West Indian manatee (Trichechus manatus) or "sea cow", also known as North American manatee, is the largest member of the aquatic mammal order Sirenia (which also includes the dugong and the extinct Steller's sea cow). It is further divided into two subspecies, the Florida manatee (T. m. latirostris) and the Antillean or Caribbean manatee (T. m. manatus), based on …