Chimpanzees have been throwing rocks at the same trees for more than a decade; scientists are trying to solve the mystery
In the remote savanna-woodlands of Guinea-Bissau, scientists are investigating a strange chimpanzee behaviour that has persisted for more than a decade. Wild western chimpanzees repeatedly collect rocks and hurl them at the same trees, creating piles of stones and leaving visible scars on the trunks. Known as accumulative stone throwing, the behaviour is particularly associated … Read more
