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When shopping for a new appliance, choosing a movie to watch or even ordering a cup of coffee, people often experience “choice overload.” New research from the Smithsonian suggests that female Cope’s gray treefrogs face a similar challenge when selecting a mate. In a study published today in iScience, researchers from the Smithsonian Tropical Research Institute and the University of Tennessee found that when female treefrogs are confronted with too many males calls at once, they become less likely to successfully choose a mate.