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Whale song shows language-like statistical structure
Inbal Arnon1, Simon Kirby2, Jenny A Allen3,4
1Psychology Department, Hebrew University, Jerusalem, Israel.
Science (New York, N.Y.)
|February 6, 2025
Summary
Humpback whale songs share a unique statistical structure with human language, suggesting cultural transmission shapes communication in diverse species. This finding highlights the role of learning in developing complex communication systems.
Area of Science:
- Bioacoustics
- Animal Communication
- Evolutionary Biology
Background:
- Humpback whale song is a culturally transmitted behavior.
- Human language exhibits statistically coherent parts with power-law frequency distributions, facilitating cultural transmission.
- These properties may be crucial for the faithful transmission of information across generations.
Purpose of the Study:
- To investigate if humpback whale song possesses similar statistical structures to human language.
- To explore the role of cultural transmission and learning in the evolution of communication systems.
Main Methods:
- Applied methods analogous to infant speech segmentation.
- Analyzed 8 years of humpback whale recordings.
Main Results:
- Identified the same statistical structure in whale song as observed in human language.
- Demonstrated a commonality in communication systems between two evolutionarily distant species.
Conclusions:
- Cultural transmission and learning play a significant role in the emergence of complex communication properties.
- Features previously considered unique to human language may arise from similar evolutionary pressures in other species.
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