Figure 4From: Effects of domestication on biobehavioural profiles: a comparison of domestic guinea pigs and wild cavies from early to late adolescenceBasal plasma testosterone levels (ng/ml) of domestic guinea pigs and wild cavies during early and late adolescence. Bar charts represent medians and “X”s represent single individuals. NDomestic = 8, NWild = 6; * = p ≤ 0.05.Back to article page