Thorleif Schjelderup-Ebbe

Thorleif Schjelderup-Ebbe (* 12. November 1894 in Oslo; † 1982?) was a Norwegian zoologist who described the pecking order of hens in his PhD dissertation of 1921.[1] The work in his dissertation was partly based on his observations of his own chickens that he had recorded since the age of 10[2]. He was the son of sculptor Axel Emil Ebbe (1868-1941) and sculptress Menga Schjelderup (1871-1945).

The dominance hierarchy of chickens and other birds that he studied led him to the observation that these birds had established the order in which individuals would be allowed to get to food while others would have to wait for their turn.

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Notes

  1. ^ Porter G. Perrin (1955) 'Pecking Order' 1927-54 American Speech, 30(4):265-268
  2. ^ The Ape and the Sushi Master, Frans de Waal, 2001

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