law of the jungle → νόμος της ζούγκλας
"The law of the jungle" (also called jungle law) is an expression that has come to describe a "survival of the fittest" scenario where "anything goes". The Oxford English Dictionary defines the Law of the Jungle as "the code of survival in jungle life, now usually with reference to the superiority of brute force or self-interest in the struggle for survival."
The phrase was introduced in Rudyard Kipling's 1894 work The Jungle Book, where it described the behaviour of wolves in a pack.
Law of the jungle - WikipediaArabic: شريعَة الغاب, قانون الغابَة; Finnish: viidakon laki; French: loi de la jungle, loi du plus fort; Galician: lei da selva; German: Dschungelgesetz, Faustrecht, Gesetz des Dschungels, Recht des Stärkeren; Japanese: 弱肉強食; Polish: prawo dżungli; Portuguese: lei da selva; Russian: зако́н джу́нглей; Spanish: ley de la selva