Abstract
Efforts to experimentally demonstrate echolocation in California sea lions, Zalophus californianus [W. Evans and R. Haugen, Bull. So. Cal. Acad. Sci. 62, 165–175 (1963); R. J. Schusterman, Psych. Rec. 16, 129–136 (1966)] and in grey seals, Halichoerus grypus [B. Scronce and S. Ridgway, in Animal Sonar Systems, pp. 991–993 (1980)] have been unsuccessful. However, similar studies on polar pinnipeds have not been conducted previously. No studies have investigated the potential for ultrasonic vocalizations in pinnipeds. Echolocation in polar pinnipeds has been suggested because of their highly developed vocal abilities and their need to find food and navigate during the dark austral winter [G. Kooyman, Ant. Res. Ser. 11, 227–261 (1968); J. Thomas and V. Kuechle, J. Acoust. Soc. Am. 72, 1730–1738 (1982)]. This presentation will summarize observations and evidence that indicates the presence of echolocation in polar pinnipeds and report the production of ultrasonic vocalizations by a captive leopard seal (Hydru...
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
