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Presented By: Ecology and Evolutionary Biology

EEB Thursday Seminar Series - Of fish tongues and other cypriniform oddities: Investigating the origin of trophic novelties

Dr. Patricia Hernandez, The George Washington University

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This event is part of our ongoing Thursday Seminar Series.

About this seminar: While functional morphologists have long studied the evolution of suites of trophic structures, the origin and evolution of morphological novelties has received less attention. There may be times when complex structures originate all at once. When such complex novelties first originate they must become incorporated into an integrated system to be rendered fully functional. Thus, morphological integration is key at the outset of acquisition of morphological novelties. Cypriniforms are a diverse group of freshwater fishes characterized by several trophic novelties that include: kinethmoid-mediated premaxillary protrusion, a muscular palatal organ, hypertrophied lower pharyngeal jaws that masticate against the base of the neurocranium, and an epibranchial organ used to aggregate small food particles. In this talk I will discuss our findings regarding the anatomy, development, and function of some of these trophic novelties.
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