The red-bellied lemur aggregates in monogamous groups ranging from two to ten individuals.

Some prosimians, such as the Red-bellied Lemur, also use scent marking to establish a territory.

In some prosimians, such as the Red-bellied Lemur, scent glands occur atop the head.

The red-bellied lemur has been studied extensively since the mid-1980s, primarily in Ranomafana National Park.

Other endemic species include the Red-bellied Lemur, the Indri, and the Aye-aye.

Red-bellied lemur (Eulemur rubriventer)

The red-bellied lemur (Eulemur rubriventer) is a medium sized prosimian with a luxuriant chestnut brown coat.

There are various Malagasy tribal names for the red-bellied lemur including tongo, tagona, halomena, kirioka and soamiera.

Likewise, the red-bellied lemur (Eulemur rubriventer) has a feathery brush-shaped tongue, also uniquely adapted to feed on nectar and pollen.

The three species of lemur on display in the woods are red-bellied lemur, ring-tailed lemur, and white-headed lemur.

Similar lemur species within their range include the mongoose lemur, E. mongoz, in the west and the red-bellied lemur, E. rubriventer, in the east.

Monogamous lemurs include the red-bellied lemur (Eulemur rubriventer) and the mongoose lemur (E. mongoz), although the mongoose lemur has been observed mating outside of its pair bond.

Even though they defend their territory from invasion by others of their species, they may peacefully co-exist with other lemur species such as Red-bellied Lemur and the Common Brown Lemur.

In fact, several unrelated Malagasy flowering plants demonstrate lemur-specific pollination traits, and studies indicate that some diurnal species, such as the red-bellied lemur and the ruffed lemurs, act as major pollinators.

In addition to providing food for humans, this plant's fruit is eaten by certain animals, such as the Red-bellied Lemur (Eulemur rubriventer) and the ruffed lemurs (Varecia) of Madagascar's eastern rainforests.

The common brown lemur and the red-bellied lemur have different coloration and do not show the extreme sexual dimorphism of the black lemur, making confusion between the black lemur and the other species unlikely.

Although the diademed sifaka defends the group's territory strongly against other members of their same species, it will share territory with other species such as the Red-bellied Lemur and the Common Brown Lemur.

The only other Eulemur species that occurs within the range of the black lemur is the common brown lemur, which overlaps with the black lemur at the extreme southern and eastern edge of its range, and the red-bellied lemur, on the Tsaratanana Massif.

Primates: Mongoose Lemur, Sclater's Lemur, Common Chimpanzee, Vervet Monkey, King Colobus, Black Lemur, Ring-tailed Lemur, Black-and-white Ruffed Lemur, Crowned Lemur, Red-bellied Lemur.

Many prosimians use territorial marking; for example, the Red-bellied Lemur creates territories for groups of two to ten individuals in the rainforests of eastern Madagascar by scent marking: the male Diademed Sifaka also scent marks defended territories in some of these same rainforests.

Groups of the red-bellied lemur have become somewhat habituated to humans along certain trail areas in Ramomafana National Park (around Blue Vue) starting in May and June, and much rarer in some lower trail areas of Montadia National Park starting in April.

Red-bellied lemur (Eulemur rubriventer)

The red-bellied lemur (Eulemur rubriventer) is a medium sized prosimian with a luxuriant chestnut brown coat.

Likewise, the red-bellied lemur (Eulemur rubriventer) has a feathery brush-shaped tongue, also uniquely adapted to feed on nectar and pollen.

Monogamous lemurs include the red-bellied lemur (Eulemur rubriventer) and the mongoose lemur (E. mongoz), although the mongoose lemur has been observed mating outside of its pair bond.

Whereas the Eulemur genus relatives may exhibit ear tufts or a furry beard, these features are absent for Eulemur rubriventer, which has thickened fur around its ears, lending a fuller facial appearance.

In addition to providing food for humans, this plant's fruit is eaten by certain animals, such as the Red-bellied Lemur (Eulemur rubriventer) and the ruffed lemurs (Varecia) of Madagascar's eastern rainforests.

There are also 19 species of reptiles and 7 species of lemurs: Indri indri, Propithecus, Varecia variegata, Eulemur fulvus, Eulemur rubriventer, Hapalemur griseus and the Aye aye.

Eulemur rubriventer occurs in five national parks and seven special reserves in eastern Madagascar, but is classified as Vulnerable (IUCN Red List) due to ongoing habitat reduction from slash-and-burn farming, illegal logging and even hunting.