Killer whales are capable of vocal learning

• Published in: Biology Letters
• Main Authors: Foote, Andrew D, Griffin, Rachael M, Howitt, David, Larsson, Lisa, Miller, Patrick J.O, Rus Hoelzel, A
• Format: Article in Journal/Newspaper
• Language: English
• Published: The Royal Society 2006
• Subjects: Orca; Orcinus orca
• Online Access: http://dx.doi.org/10.1098/rsbl.2006.0525; https://royalsocietypublishing.org/doi/pdf/10.1098/rsbl.2006.0525; https://royalsocietypublishing.org/doi/full-xml/10.1098/rsbl.2006.0525

The production learning of vocalizations by manipulation of the sound production organs to alter the physical structure of sound has been demonstrated in only a few mammals. In this natural experiment, we document the vocal behaviour of two juvenile killer whales, Orcinus orca , separated from their natal pods, which are the only cases of dispersal seen during the three decades of observation of their populations. We find mimicry of California sea lion ( Zalophus californianus ) barks, demonstrating the vocal production learning ability for one of the calves. We also find differences in call usage (compared to the natal pod) that may reflect the absence of a repertoire model from tutors or some unknown effect related to isolation or context.