Science News Online (11/7/98): References for Use-it-and-lose-it genitals for birds

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Use-it-and-lose-it genitals for birds

Males of the bird species called bearded tit don’t bother lugging around a lot of sexual equipment when it’s not going to be used.

References:

Briskie, J.V. 1998. Avian genitalia. Auk 115(October).

Sax, A., and H. Hoi. 1998. Individual and temporal variation in cloacal protuberance size of male bearded tits (Panurus biarmicus). Auk 115(October).

Sources:

James V. Briskie
University of Canterbury
Department of Zoology
PB 4800 Christchurch
New Zealand

Herbert Hoi
Konrad Lorenz Institut für Vergleichende Verhaltensforschung
Savoyenstrasse 1a
A-1160 Vienna
Austria

Andreas Sax
Konrad Lorenz Institut für Vergleichende Verhaltensforschung
Savoyenstrasse 1a
A-1160 Vienna
Austria

From Science News, Vol. 154, No. 19, November 7, 1998, p. 301.
Copyright Ó 1998 by Science Service.

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