..., and from laser vibrometry suggest that the auditory threshold curves of cormorant fledglings in both media are similar in shape and sensitivity to sound pressure. However, the sensitivity underwater is higher than in air in terms of intensity. Eardrum vibration amplitudes both in air and underwater...

... characteristics which should render it less conspicuous to eared moths. We tested this prediction by monitoring electrophysiologically the ears of sympatric noctuoid (noctuid, arctiid and notodontid) moths in a site in western Canada. Auditory threshold curves demonstrate that most of the moths tested are less...