The most prominent behavior of all during the heat of the rut is fighting, where bucks show their true dominance to others. In fighting, bucks usually battle against similar sized deer, and small bucks do not normally challenge mature large ones: more often than not, smaller bucks fear the more mature bucks and leave or avoid the dominant deer's territory. The fights can go on and on, with the winner getting the group of does. Some fights go on until death, and if not, it is not unusual to see one of them get injured.