Chacma baboons (Papio cynocephalus ursinus), grooming, Kruger National Park, South Africa, Africa

Bay horse and skewbald horse mutual grooming in a paddock, Oxfordshire, England

Common Plains Zebra (Grant's), Ngorongoro Crater, Tanzania

Olive Baboons mating, Grumeti, Tanzania

Young girls inspecting for nits, Patan, Nepal.

Horses Grooming

Chimpanzees (Pan troglodytes) during mutual grooming, native to Africa, in captivity, Germany, Europe

Geoffroy's Tamarin (Saguinus geoffroyi), two adults in mutual grooming, Gamboa, Panama, November