Additional file 3 of Photo-refractoriness reflects bet-hedging strategies deployed in unpredictable environments in male Brandt’s voles

Supplementary Material 3: Testicular volume (mean ± SD) of male Brandt’s voles at different ages under long and short photoperiods. P value showing the effect of photoperiod and age on testicular volume. Independent-sample t test and one-way ANOVA were used for data analysis.