To beat or not to beat: “opportunistic” behaviour during antler growth period odifies cortisol concentration in red deer (Cervus elaphus) males
Red deer (Cervus elaphus) males out of rut associate in bachelor groups where animals compete for rank position throughout agonistic interactions. In this study, males of a group of 18 adult individuals was divided into two groups of 9 animals each, namely “Friends” (low frequency of attacks) and “Rivals” (competing frequently) according to the number of agonistic encounters recorded earlier.
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