Vocalizations of Malaysian Bats (Microchiroptera and Megachiroptera)
Repetitive, graded vocalizations occur in young bats during maternal-infant communication. In shrews, rodents, tenrecs, polar bears, ungulates, civet cats and some primates similar graded repetitive sounds are emitted and coupled to excitation levels. Occurrence of this coupling in such disparate groups suggests that phylogenetically the repetitive vocal emission system has been pervasive in placental mammals and that bats probably locked into an existing graded communication system for the development of echolocation.
KeywordsPolar Bear Forearm Length Adult Sonar Auditory Nervous System Sonar Emission
Unable to display preview. Download preview PDF.
- Novick, A. 1977. Acoustic orientation, in: “Biology of bats”, V.3, W. A. Wimsatt, ed., Academic Press, New York.Google Scholar