Fig. 4From: Nasal administration of gonadotropin releasing hormone (GnRH) elicits sperm production in Fowler’s toads (Anaxyrus fowleri)Average sperm forward progressive motility (FPM) over time for males (n = 15/trt) between GnRHa treatment groups: 5 μ g (▲), 10 μg (●), and 20 μg (■). Data are shown as mean + SEMBack to article page