Natur'Zoo de Mervent (France) : Lemurs walkthrough exhibit In 2008, the Natur'Zoo de Mervent, a small french zoo, opened a new walkthrough exhibit for three species of lemurs. It covers a size of 8000 m² and has a grassy part with rocks and climbing structures, and a large forested part where the primates have access to 10-12 meters high trees. A catta's family, some white-and-black varis, red varis and Mayotte's Lemurs live in this complex.