Convergence on reduced aggression through shared behavioral traits in multiple populations of Astyanax mexicanus

Roberto Rodriguez-Morales, Paola Gonzalez-Lerma, Anders Yuiska, Ji Heon Han, Yolanda Guerra, Lina Crisostomo, Alex C. Keene, Erik R. Duboue & Johanna E. Kowalko
Abstract Background Aggression is observed across the animal kingdom, and benefits animals in a number of ways to increase fitness and promote survival. While aggressive behaviors vary widely across populations and can evolve as an adaptation to a particular environment, the complexity of aggressive behaviors presents a challenge to studying the evolution of aggression. The Mexican tetra, Astyanax mexicanus exists as an aggressive river-dwelling surface form and multiple populations of a blind cave form, some...
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