New research led by University of Oxford researchers has found that old age likely impacts the habitual tool-use behaviors of some wild chimpanzees—although the extent to which different individuals ...

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, ...

Knowing the age of an animal reveals key information about how long it lives and when it reproduces. Until recently, researchers had to slice the teeth of dead dolphins and count growth layers, much ...

The world's oldest known wild bird is hatching a plan to continue her legacy. Subscribe to read this story ad-free Get unlimited access to ad-free articles and exclusive content. Wisdom, a 74-year-old ...