Chimpanzees demonstrating  "high-five" grooming

technique unique to Mahale chimps

(Mahale Mts. National Park, Tanzania)

mammal; primate; ape; simian; great ape; chimpanzee; female; Chordata; Mammalia; Primates; subO Haplorrhini; infraO Simiiformes; parvO Catarrhini; Hominidae; Pan troglodytes; grooming behavior, Africa