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(A) Example of C4 grass (Cynodon sp.) with seeds that are used seasonally by primates (vervet monkeys and baboons) in Samburu Reserve, Kenya. (Left) Before handling. (Right) After seeds have been stripped. (B) Common baboons (P. anubis) digging C4 grass rhizomes in Samburu Reserve, Kenya. (C) T. gelada in C3 grassland of the Simien Mountains, Ethiopia. Photograph by George Chaplin.
