Wild chimpanzees and gorillas can develop enduring, cordial relationships that continue for many years

Chimpanzees and gorillas create friendships, some of which last for at least 20 years, according to a groundbreaking new study

We are aware that many gorillas and chimpanzees are ferociously territorial. Both species will protect their home ranges against invading tribes. Members of other groups that intrude into chimpanzee territory are often killed. Furthermore, researchers discovered that a troop of chimpanzees in Gabon had killed newborn gorillas between 2014 and 2018 and e…