e/Killer ape theory

Information
has gloss	eng: The killer ape theory or killer ape hypothesis is the theory that war and interpersonal aggression was the driving force behind human evolution. It was originated by Raymond Dart in the 1950s; later it was developed further in African Genesis by Robert Ardrey.
lexicalization	eng: killer ape theory
instance of	(noun) a tentative insight into the natural world; a concept that is not yet verified but that if true would explain certain facts or phenomena; "a scientific hypothesis that survives experimental testing becomes a scientific theory"; "he proposed a fresh theory of alkalis that later was accepted in chemical practices" hypothesis, theory, possibility

Meaning
Japanese
has gloss	jpn: キラーエイプ仮説とは戦争や個人間の攻撃性が人の進化の原動力となったという仮説。1950年代にレイモンド・ダートによって提唱され、ロバート・アードリーの『アフリカ創世記』（1961年）で拡張された。
lexicalization	jpn: キラーエイプ仮説