Hamadryas Baboons live in large groups. These large groups are made up of smaller groups. The smallest group is called a 'harem' and has one adult male and a number of females with their young. Harems that are related, form a 'clan' and look for food together. There is no fighting between the families. Even if there is a threat of danger, they support each other. At the end of the day, the clans gather together on rocks to sleep. Altogether that can sometimes amount to hundreds of animals. In the Beekse Bergen Safari Park, ten harems live together. The harem leader is the father of almost all of the young in the harem.
Grey Jackets and Red Bottoms
The hamadryas baboon is distinguishable by its collar of long grey hairs. Only the adult males have such a fine collar. Their red rumps are also particularly remarkable. In the females, the rump swells enormously during their fertile period once a month. All of the males find that very attractive. But only the leader of the group is allowed to mate with her.