The key to primate success is that, like us, most species live in close-knit family groups. How do you choose your friends, learn from those around you and know who to trust? We explore the complex world of primate social lifestyles.

In Peru, emperor tamarin males are conned into childcare, while vervet monkeys in South Africa have a sophisticated alarm system to warn for predators. Elsewhere, George has a very close encounter with some hunting chimpanzees.

But living in families is not always easy. In Gibraltar, barbary macaques steal babies to impress their boss. Hamadryas baboon males in Ethiopia rule with an iron fist, and in matriarchal ring-tailed lemur societies, the girls have to fight pitched battles with babies in tow. Show less