Chimpanzees who travel are more frequent tool users, according to new findings from the University of Neuchâtel and the University of Geneva, Switzerland, to be published in eLife.
Hawa is a wild chimpanzee from the Budongo Forest in Uganda who burns up a lot of energy travelling, which he has learnt to replenish with a dose of honey. His friend Squibs makes less of an effort to roam and has not acquired the skills needed to enjoy this high-energy treat. This pattern was repeated in other members of the study group over seven years of observation.