Peony

Peony had arthritis and was very old, so she could barely move. She would try to climb into a climbing frame where a bunch of chimps were sitting and grooming each other. She wanted to join them, but she could barely get in there. The younger females would walk up to her, put their hands on her behind, and start pushing until she was up there with the rest. We’ve also seen cases where she started walking towards a water faucet, but, since it’s a very large enclosure and she walked with so much difficulty, a younger female would run ahead of her, take water in her own mouth, walk back to Peony, and then spit the water into her mouth so she wouldn’t need to walk all the way to the faucet. 

-- Frans de Waal