“…In another study on mice, carried out to determine the combined and separate effects of castration and "competitive training, " Bevan et al (1960) showed that pretest experience (whether the animal won or lost encounters) had a far greater influence on later aggressive behavior than did androgen levels. Other studies have also shown that the relationship of androgens to fighting Fredericson, 1950Levy and King, 1953Lagerspetz and Talo, 1967Hutchinson et al, 1965Lincoln et al, 1972Uhrich, 1938Beeman, 1947aSigg et al, 1966Barfield et al, 1972Vandenberg, 1971Payne, 1973aPowell et al, 1971a Milligan et al, 1973Christenson et al, 1973Anisko et al, 1973 Lagerspetz et al Kuo,1960cRose et al, 1971Persky et al, 1971b Beeman, 1947a Levy and King, 1953Lagerspetz and Talo, 1967Barfield et al, 1972Kiryukhin, 1972Vandenberg, 1971Payne, 1973aHorridge, 1970Lincoln et al, 1972Andrew, 1972a (Doering et al, 1974). is more complex than merely providing a facilitating influence whatever the experimental circumstances (e.g., in mice; Bevan et al, 1957;in pigeons: Lumia et al, 1973;in quail: Kuo, 1960d).…”