Contact: Gerry Everding
Washington University in St. Louis
Caption: This is a capuchin monkey of the Cebus variety dines on a bright green katydid grasshopper. A steady diet of abundant ripe fruit and leaf-crawling insects may explain why Cebus can't hold a stick to their Sapajus capuchin cousins when it comes to tool usage and other higher-level cognitive skills.
Credit: A. Melin
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