"You Aren't so Tough, Buddy!"
			Bachelor herds are smaller than female herds. Membership changes often. They maintain a distance between one another of about 3 meters which shows the great antagonism that is present at an early age in male impalas. They do practice reciprocal grooming though, a kind of social bonding behavior. Serengeti sudies on aggressive interactions between bachelors showed a largely linear rank hierarchy.
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