![]() Then, we can observe the male emitting peep and squeal calls with only one vocal sac inflated, the one nearer the female (his left vocal sac), demonstrating the visual component of his bright whitish vocal sacs. That couple position is kept during the acceptance courtship step. Movie starts showing female approaching the male and the exact moment when the female adopts the acceptance position, touching the male’s dorsum with her gular region. ![]() S5 Movie: Hylodes japi couple during the elaborate courtship ritual.
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