Sperm whales in the Balearic Sea exhibit unique rhythmic sound patterns

A new study published in the journal Proceedings of the Royal Society B: Biological Sciences has revealed significant differences in the rhythmic sound patterns, known as codas, emitted by sperm whales in the western Mediterranean compared to those in the eastern Mediterranean.

Bioacoustician Taylor Hersh from the University of Bristol analyzed a database of 5,291 codas, including recordings from the Associació Tursiops in the Balearic Sea. The research indicates that sperm whales in the western Mediterranean typically utilize slower, more deliberate rhythmic patterns, whereas those in the eastern Mediterranean tend to produce much faster rhythms.

Researchers suggest these variations function similarly to human dialects. The differences are likely influenced by environmental factors, such as specific areas used for hunting, resting, or mating within different Mediterranean basins. This finding challenges previous assumptions that sperm whale communication was uniform across the species.