a group of four ringed-tail lemurs perched on top of a tree branches

alarm animal appearance atop black branch branches call calls captivity dark diurnal endangered forest forests four fur furry gland glands gray grey groom grooming group habitat hide hiding huddle identical interact interacting keep lemur lemurs life light long mammal mammals omnivore omnivores omnivorous perch perched primate primates ring ringed same scent scrub scrubs similar singapore social species spiny tail tailed tails together top tree twig twigs vocal vocalization vocalizations warm warmth white wild wildlife zoo zoos