Figure 5.

ABR-derived audiograms for anoles (closed circles) and geckos (closed triangles) in comparison to budgerigars (solid line, Brittan-Powell et al., 2002), screech owls (dashed line, Brittan-Powell et al., 2005) and alligators (dotted gray line, Higgs et al., 2002). Note all ABRs were measured using the same equipment, except that the sound source for the bird and alligator ABRs was free field while lizard sound stimuli were delivered through earphones. Error bars for these average data are not shown for the sake of clarity. Averaged data are shown for other studies, but median data are shown for the anole and gecko for the sake of consistency.