Figure 1From: Behavioral and physiological female responses to male sex ratio bias in a pond-breeding amphibianCourtship posture of red-spotted newts, N. viridescens . A single male captures and courts a female (A), while rival males can also attach and attempt to court the female or dislodge the male (B). This posture is termed amplexus. Photographs by K. Grayson.Back to article page