I was standing on a gravel road in Torres del Paine National Park, Patagonia, photographing a pair of male guanacos who were having a vicious dominance battle for control of a harem of females right beside the road. These battles, between these otherwise peaceful grazers, can go on for quite a while and end suddenly when the loser breaks off and runs away, pursued by the winner. In these battles, the object is to prevent the rival from breeding with the females and they tend to go for each other's testicles. In the meantime the females in dispute can be seen in the background looking a little bored with the whole hullabaloo.
guanacosmalesdominance battlewatching femalesfightingactionTorres del PainePatagonia