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. 2012 Dec 26;7(12):e52371. doi: 10.1371/journal.pone.0052371

Figure 2. Figure 2. Offensive and defensive behavioural patterns displayed during chronic subordinate colony housing (CSC).

Figure 2

Mean offensive and defensive behavioural patterns displayed by the Long-Evans residents (R; blue columns) and the CSC (black columns) rats during the first 2 h of CSC colony formation on days 1, 8 and 15 (3×2 h = 6 h). Long-Evans residents (n = 27) only showed offensive behaviours including threat, attack, offensive and keep down. CSC rats (n = 35) only displayed defensive and submissive behaviours such as freezing, defensive upright and lying on the back. Data represent means ± S.E.M. * P<0.05 vs respective behaviour shown by R.