Abstract
BAYER1 has shown that the presence of a hungry hen can increase the food consumption of a well-fed hen by as much as 60 per cent. This social facilitation has also been observed in fish2, rats3 and apes4. It is now reported in grazing sheep.
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References
Bayer, quoted by Katz, “Animals and Men. Studies in Comparative Psychology” (Longman, Green and Co., London, 1937).
Welty, Physiol. Zool., 7, 85 (1934).
Harlow, J. Genetic Psychol., 41, 211 (1932).
Harlow, J. Comp. Psychol., 16, 171 (1933).
Cushnie and White, Vet. Record, 60, 105 (1948).
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TRIBE, D. Influence of Pregnancy and Social Facilitation on the Behaviour of the Grazing Sheep. Nature 166, 74 (1950). https://doi.org/10.1038/166074a0
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DOI: https://doi.org/10.1038/166074a0
