The variation of the hormonal steroid profiles ((a) urinary testosterone (ng mg−1 creatinine), urinary corisol (µg mg−1 creatinine) and urinary progesterone (ng mg−1 creatinine)) of Damaraland mole rat (Fukomys damarensis) breeding females (BFs, denoted by open circles) and non-breeding females (NBFs, denoted by open triangles). The significant relationships between urinary progesterone (ng mg−1 creatinine) and the prevalence of (c) monocytes (%) and (d) eosinophils (%), and (e) monocycte : lymphocyte ratio (MLR) in female Damaraland mole-rats (BFs and NBFs combined) are also presented. Statistical significance is denoted by an asterisk (*) p ≤ 0.05, and data are presented as mean ± s.e.