Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Cumulative average rates (± SEM) of aggression directed at group mates (emitted; A), aggression received from group mates (B), and submissive behaviors (C) per 30 minutes for each month from group formation. Letters denote significant changes in behaviors over time.
