Red-fronted brown lemur (Eulemur fulvus rufus). Native to the deciduous forests of Madagascar, red-fronted lemurs are one of seven subspecies of brown lemur. They are about the size of a house cat, weighing between 2 and 4 kilograms. They live in groups of between 4 and 18 individuals, and strengthen social bonds by grooming each other. They mostly feed on leaves, but also eat flowers, fruit and bark. Photographed in Madagascar.