Fig. 1

Mounting behaviour during the lights-on (A, B) and lights-off (C, D) periods in spiny mice. Male spiny mice approach females from behind and place front paws on the middle of the female’s back. Females will either allow mating to occur or move to prevent unwanted mating. Frames 2B and 2D are zoomed in images (2X) of 2A and 2C respectively