Any of several semiaquatic, web-footed carnivore species in four genera of the weasel family (Mustelidae), found throughout Africa, North and South America, Europe, and Asia.
Otters have the same general proportions as weasels. Size varies among species, but total length is typically 3–7 ft (1–2 m), and weight is 6.5–60 lb (3–27 kg); the large sea otter is an exception. Otter fur, especially that of northern animals, is highly valued. Most species live near rivers; some live near lakes or streams; and the sea otter is completely marine. Otters eat small aquatic animals. They are inquisitive and playful; a favourite sport is sliding down a mud bank and plunging into water.
River otter ( Lutra canadensis ).
Kenneth W. Fink
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