Table 1.

Agonistic behavior during the maintenance of dominance relationships.

Social status	Submissive behavior (sec) (mean ± SEM)			Aggressive behavior (sec) (mean ± SEM)
	Day 1	Day 7	Day 14	Day 1	Day 7	Day 14
Subordinate	229.45 ± 39.17	204.76 ± 13.66	201.41 ± 17.46	___	___	___
Dominant	___	___	___	177.04 ± 28.31	134.39 ± 22.83	152.20 ± 27.08

Subjects were weight-matched in resident-intruder dyads and paired daily in social encounters for 14 days. Day 1 encounters were 600 sec in duration, while days 7 and 14 encounters were 300 sec in duration. Dominants displayed high rates of aggression throughout all 14 days, while subordinates maintained high rates of submissive behavior. No dominant animals exhibited submissive behavior and no subordinates showed aggression.