A large semiaquatic rodent(Hydrochoerus hydrochaeris) of tropical South America,having short limbs and a vestigial tail and often attaining lengths of more than1.2 meters(4 feet).

 
  • 水豚,一种巨大的半水栖啮齿动物(水豚),产于南美洲的热带地区,四肢短小,尾已退化,身体长达1.;2米(4英尺)。
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