Among amniote vertebrates, nonavian reptiles (chelonians, crocodilians, and lepidosaurs)
are regarded as using vocal signals rarely (compared to birds and mammals). In all three …

The ability to sense and localize sound is so advantageous for survival that it is difficult to
understand the almost 100 million year gap separating the appearance of early tetrapods …

Although lizards have highly sensitive ears, it is difficult to condition them to sound, making
standard psychophysical assays of hearing sensitivity impractical. This paper describes non …

Body size is an ecologically important variable in animals. The geographical size variation of
most snakes and some lizards counters Bergmann's rule in that, among related taxa, the …

The dimensions of auditory structures among animals of varying body size can have
implications for hearing performance. Larger animals often have a hearing range focused on …

Lizards have highly directional ears, owing to strong acoustical coupling of the eardrums
and almost perfect sound transmission from the contralateral ear. To investigate the neural …

We describe exceptional high-frequency hearing and vocalizations in a genus of pygopod
lizards (Delma) that is endemic to Australia. Pygopods are a legless subfamily of geckos and …

Birds exhibit wide variation in their use of aquatic environments, on a spectrum from entirely
terrestrial, through amphibious, to highly aquatic. Although there are limited empirical data …

Gekkotan lizards are the most vocal of all squamates and a majority of species (exclusive of
eublepharids and most diurnal geckos) are capable of producing both distress calls and …

Lizard ears are coupled across the pharynx, and are very directional. In consequence all
auditory responses should be directional, without a requirement for computation of sound …