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Pecking_order aus Wikipedia. Zum Beitrag

Pecking order - Wikipedia, the free encyclopedia Pecking order From Wikipedia, the free encyclopedia Jump to: , Pecking order or just peck order is a hierarchical system of social organization in animals. It was first described from the behaviour of poultry by Thorleif Schjelderup-Ebbe in 1921 under the Ge... mehr

Pecking_order aus Wikipedia. Zum Beitrag