Fig. 6. Hatching response of Agalychnis callidryas embryos over time to the vibrational playback stimulus that elicited the strongest hatching response (0.5 s duration:1.5 s interval). A 5 min playback period was followed by 5 min post-playback observation. Data are mean proportion hatched at each time point, out of total hatched, for N=11 clutches, except for the 30 s data point where N=6 clutches. Error bars are s.e.m.