Charlotte Uhlenbroek meets the monkeys. At 3,000 metres up in the Simien mountains of Ethiopia, Charlotte encounters gelada baboons that live in groups of up to 800 individuals. The large lion-like males are busy attending to their harems and a lot of male posturing is going on. It looks fierce, but these are the teddy bears of the monkey world. In Central America, Charlotte catches the attention of some laid-back howler monkeys by howling at them. Charlotte can't climb like the monkeys, so to get up into the canopy she dons a hard hat and harness and hauls herself up to get a monkey's eye view of the world. Humans have the longest childhood of all animals, but young monkeys do stay with their parents for several years. In the remote mountains of central China, a baby golden monkey is the apple of everyone's eye. Like humans, older brothers and sisters want to hold the baby and play pass the parcel with it, until mum calls a halt to their game. Also in China, Tibetan macaq

• Charlotte Uhlenbroek