Chimpanzees living in Gombe Stream National Park in Tanzania employ a degree of engineering when making their tools, deliberately choosing plants that provide materials that produce more flexible ...

Are chimpanzees sensitive to the effect of an object's properties on nut-cracking efficiency and plan their tool selection accordingly? An international team of researchers of the Max Planck Institute ...

Wild chimpanzees show reduced participation and performance in their tool-use behaviours as they experience old age, according to long-term video observations. The study, published today in eLife, ...

Wild chimpanzees use tools during some of the most cognitively and physically demanding foraging behaviors observed in non-human animals. While the behavioral changes that occur with aging have been ...

The female endangered chimpanzee used a stick to investigate a trail camera in a Gabon national park. Gabon ANPN/Panthera/Gaboma Multimedia and Production In 2015, a photograph of a lone male lion in ...