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1 November 2010 Nursing vocalization of a polar bear cub
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Abstract

We recorded the nursing vocalization of a wild polar bear (Ursus maritimus) cub in Svalbard, Norway and describe it with the term humming. From a 3-minute recording of the vocalization, we found the sounds composed of between 30–55 pulses with a mean of 0.05 (SE  =  0.002) seconds in duration, a frequency with the greatest energy at 0.28 kHz (SE  =  0.06), and a mean maximum frequency of 0.85 kHz (SE  =  0.15). The function of the pulsed vocalization is unknown but may relate to comfort and contentment or to stimulate milk release by the mother.

Andrew E. Derocher, Sofie M. Van Parijs, and Øystein Wiig "Nursing vocalization of a polar bear cub," Ursus 21(2), 189-191, (1 November 2010). https://doi.org/10.2192/09SC025.1
Received: 8 September 2009; Accepted: 1 May 2010; Published: 1 November 2010
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