A sensory bias has triggered the evolution of egg-spots in cichlid fishes.

Although, generally, the origin of sex-limited traits remains elusive, the sensory exploitation hypothesis provides an explanation for the evolution of male sexual signals. Anal fin egg-spots are such a male sexual signal and a key characteristic of the most species-rich group of cichlid fishes, the...

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Bibliographic Details
Main Authors: Bernd Egger, Yuri Klaefiger, Anya Theis, Walter Salzburger
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2011-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3196499?pdf=render