Evolutionary pathways toward gigantism in sharks and rays

@article{Pimiento2019EvolutionaryPT,
  title={Evolutionary pathways toward gigantism in sharks and rays},
  author={Catalina Pimiento and Juan L. Cantalapiedra and Kenshu Shimada and Daniel J. Field and Jeroen B. Smaers},
  journal={Evolution},
  year={2019},
  volume={73}
}
Through elasmobranch (sharks and rays) evolutionary history, gigantism evolved multiple times in phylogenetically distant species, some of which are now extinct. Interestingly, the world's largest elasmobranchs display two specializations found never to overlap: filter feeding and mesothermy. The contrasting lifestyles of elasmobranch giants provide an ideal case study to elucidate the evolutionary pathways leading to gigantism in the oceans. Here, we applied a phylogenetic approach to a global… 

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