It seems the Rock Hyrax uses its song for more complex communication than previously understood. One study provides evidence of complex syntactic vocalizations in this small social mammal. It demonstrates the syntax of hyrax calls is significantly different between different regions in Israel and that syntax is more closely related to nearby groups than distant groups. The authors find that this rich syntactic structure, and its geographic correlation suggests the possibility of vocal production learning in the hyrax.
- Kershenbaum, A., Ilany, A., Blaustein, L., & Geffen, E. (2012). Syntactic structure and geographical dialects in the songs of male rock hyraxes. Proceedings of the Royal Society B: Biological Sciences, rspb.2012.0322-. doi:10.1098/rspb.2012.0322
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