The aggression of male mice against androgenized females

Abstract

Two matched groups of 24 isolated male mice were aggression tested against spayed, daily-injected females. One group of females received testosterone propionate, and a control group a placebo. The TP-treated females were attacked significantly more than were the controls after 5-9 injection days. This delay indicates that the females’ aggression-eliciting cue may be in the form of a pheromonal substance released from an androgen-dependent tissue, rather than being an excreted androgen metabolite. © 1970, The Psychonomic Society, Inc.. All rights reserved.