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Marine mammals / Historical acoustic study

A shared song can change across years

Across 163 songs sampled near Bermuda, songs within a year were similar while their content changed across years. The series covers 13 sampled years between 1957 and 1975.

What we reviewed · Selected evidence reviewed

Indexed 1985 publisher abstract and 2017 review abstract; full methods, spectrograms and original audio not reviewed.

Not yet independently reviewed by a scientific specialist.

What this does — and doesn’t — establish

Seasonal sampling is not a continuous 19-year recording. Changing structure does not reveal translated meaning; the later review discusses unresolved functions of song in the mating system.

What we can build on

Test models across years as well as individuals: a recording date can change what a pattern means.

See the related tools and reading paths →

The next reading task

Obtain the full historical methods and examine later work on population change and competing song-function hypotheses.

Go to the sources

  1. Changing humpback songs near Bermuda: 1985 study ↗

    Payne and Payne (1985). Indexed publisher abstract reviewed: recordings in 13 sampled years between 1957 and 1975, near Bermuda. Full methods not obtained.

  2. Humpback song functions: a later review ↗

    Herman (2017). Publisher abstract reviewed; competing interpretations of song in the mating system remain relevant to reading the historical study. Full synthesis not reviewed.

Original editorial note by Talk2Nature contributors. AI-assisted, source-grounded synthesis; not a peer review or an independent replication. Linked works retain their own rights.