Grooming Baboons.
Chacma Baboons (Papio ursinus) are very sociable animals and when not feeding, can be constantly seen grooming each other or playing. In the Kruger Park I found these two next to the road. The front one would sit very still while the one at the back would rub and scratch, looking for any sign of ticks, fleas or any parasites it can lay its hands on. Shortly the roles would reverse and the one groomed would return the favour. Iliked the bit of motion blurt in the baboon at the back as it moved around in its task.
Canon EOS5 with 500mm/f4.5L lens (1/125s, f5.6) and Fuji Velvia film.