弱肉強食 [ㄖㄨㄛˋ ㄖㄡˋ ㄑㄧㄤˊ ㄕˊ; ruo4 rou4 qiang2 shi2]
  lit. the weak are prey to the strong (idiom); fig. predatory behavior
  the law of the jungle
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  弱肉強食
  じゃくにくきょうしょく
  noun (common) (futsuumeishi)
  The survival of the fittest
  the law of the jungle
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