Nursing vocalization of a polar bear cub

@inproceedings{Derocher2010NursingVO,
  title={Nursing vocalization of a polar bear cub},
  author={Andrew E. Derocher and Sofie M. Van Parijs and {\O}ystein Wiig},
  year={2010}
}
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… 
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