| Fighting salmon
fly dark flag to surrender
Young salmon
sparring with each other say "uncle" by darkening their spots.
References:
O’Connor, K.I.,
N.B. Metcalfe, and A.C. Taylor. 1999. Does darkening signal submission
in territorial contests between juvenile Atlantic salmon, Salmo
salar? Animal Behaviour 58(December).
Further Readings:
Raloff, J. 1999.
Pollutant waits to smite salmon at sea. Science News 155(May
8):293.
Sources:
Neil B. Metcalfe
University of Glasgow
Division of Environmental and Evolutionary Biology
Graham Kerr Building
Glasgow G12 8QQ
United Kingdom
Kirstine I. O’Connor
University of Glasgow
Division of Environmental and Evolutionary Biology
Fish Biology Group
Institute of Biomedical and Life Sciences
Graham Kerr Building
Glasgow G13 8QQ
United Kingdom
From Science
News, Vol. 156, No. 24, December 11, 1999, p. 375. Copyright ©
1999, Science Service. |