Otter, clipper-built body, grow 60 ～ 80 centimeters, weight can amount to 5 kilogram, the eye is highlighted slightly, ear is smallish and round, path of nostril, ear has the valve that waterproof fill entersThey draw near water and house. Reside natural burrow more, often love quiet embankment to have the winding and old root of rock rift, large tree, labyrinthian, cavern that connects Liu TongshuiWith fish, rat kind, frog kind, crab, water bird for staple food, after full abdomen, they still are caught can incessantly kill fish, endanger to pisciculture consequently greatForce is done not have on the bank, but in person of serious offence of the force in waterClever and bright otter, train through half an year, fish with respect to what can become to be piscatorial work for hotshot. By the fisherman kind call " piscine cat child "Otter encounters risk submerge, the oxygen that relies on the reservior inside the body can stay to 5-15 in underwater minute