Taking it easy. Credit: Image courtesy of MPI EVAN/JGI-USA.
A fight. Credit: Claudia Rudolf von Rohr
Thinking it over. Credit: Claudia Rudolf von Rohr
Adult grooming a young chimpanzee. Credit: A. Plumptre/WCS
Adult male chimpanzee. Credit: Katrin Riedl
Check it out! Credit: Max Planck Institute for Evolutionary Anthropology/Cristina M. Gomes
Young chimpanzee in a tree. No credit required.
Two infant chimpanzees at play. Credit: Elisabetta Palagi (Cordoni G, Palagi E (2011) Ontogenetic Trajectories of Chimpanzee Social Play: Similarities with Humans. PLoS ONE 6(11): e27344. doi:10.1371/journal.pone.0027344).