Figure 1 From: Male urine signals social rank in the Mozambique tilapia (Oreochromis mossambicus) Urination frequency of male tilapia. Frequency of urination (pulses per minute every 5 min; mean ± SEM; n = 4) by dye-injected resident males in social isolation (open horizontal bar) followed by the presence of a saline-injected intruder male of similar size (dark horizontal bar).Back to article page