Kinkajou

The kinkajou is a mammal of the family Procyonidae, related to olingos, coatis and raccoons, and the only member of its genus. It is native to tropical rainforests of Mexico, Central and South America and is seldom seen because of its strictly nocturnal habits. It spends most of its life in trees, with a fully prehensile tail used as a fifth hand in climbing, though not for grasping food. About 90% of its diet is fruit, particularly figs, and it also takes leaves, flowers and nectar. It holds soft fruit in its forepaws and scoops out the pulp with a slender, extrudable tongue about 13 cm (5 in) long, and it is usually solitary when foraging.

About the kinkajou

The kinkajou (Potos flavus) is a small, tree-dwelling member of the raccoon family, Procyonidae, native to the tropical forests of Mexico, Central America and South America. It is the only species in its genus and is related to olingos, coatis, raccoons and the ringtail. Strictly nocturnal, it eats mostly fruit and is rarely seen by people.

Despite the nickname "honey bear," it is no bear, and despite its monkey-like habits it is not a primate, though an early scientific name, Lemur flavus, filed it with the lemurs. Although it lives in trees, it is not closely related to any other tree-dwelling mammal group. Molecular studies show the kinkajou lineage branched off from all other procyonids 24 to 21.6 million years ago, making it the sister group to the rest of the family, which includes the raccoon and the ringtail. Kinkajous are thought to have evolved in North America and moved south after the Isthmus of Panama formed. The name traces back through French to an Algonquian word for the wolverine.

The kinkajou has a round head, large forward-facing eyes, a short pointed snout, short limbs and a long, furred tail. Including the tail, it measures 82–133 cm (32–52 in), with the tail alone 39–57 cm (15–22 in). Adults weigh 1.4–4.6 kg (3.1–10.1 lb), and females are generally smaller than males. The small, rounded ears are 3.6–5.4 cm (1.4–2.1 in) long, and the eyes shine green or bright yellow in light.

The short, dense, woolly coat is honey-brown overall but varies from tawny olive and wood brown to yellowish tawny above, with buff to brownish-yellow underparts. Some individuals have a black stripe along the back. The coat mixes light yellowish hairs with darker brown-tipped ones, which reflect light differently and can create an illusion of spots and lines.

Behavior and diet

Kinkajous spend nearly their whole lives in trees and are built for it. The fully prehensile tail works as a "fifth hand" when climbing, though it isn't used to hold food. Their ankles and feet rotate 180 degrees, so they can run backward along branches and climb down trunks headfirst. They are well known for hanging upside down by the tail and hind legs while holding fruit in one hand. Their skill at handling objects rivals that of primates.

As nocturnal animals, kinkajous are most active from about 7 p.m. to midnight and again in the hour before dawn. By day they sleep in tree hollows or shaded tangles of leaves, out of direct sunlight. Scent glands near the mouth, on the throat and on the belly mark territory and travel routes.

Although they belong to the order Carnivora and have sharp teeth, kinkajous are mostly fruit eaters. Around 90% of the diet is fruit, mainly ripe and especially figs. A kinkajou holds soft fruit in its forepaws and scoops out the pulp with its tongue. Leaves, flowers, nectar and herbs make up most of the rest, with occasional insects, especially ants, plus bird eggs and small vertebrates. They may play an important role in dispersing the seeds of the fruit they eat.

The slender, extrudable tongue is about 13 cm (5 in) long and lets the kinkajou lick nectar from flowers, so it may also act as a pollinator. Captive kinkajous eagerly eat honey, the source of the "honey bear" name, but honey is not well documented in the wild diet. In forests they share with spider monkeys, the two fill similar fruit-eating roles, the monkeys by day and the kinkajous by night.

Kinkajous were long thought to be solitary, but they are surprisingly social. A typical group is two males, one female and their young, and group members sleep together and groom one another. The dominant male fathers most young, though the subordinate male sometimes mates too. Kinkajous can breed year-round. After a gestation of 112 to 118 days, a female has one, occasionally two, babies. Pregnancy and nursing together last about eight months, and mothers sometimes "park" a weaned youngster in a nearby tree while they feed.

Range and habitat

Kinkajous range from east and south of Mexico's Sierra Madre, through all of Central America, and south to Bolivia east of the Andes and the Atlantic Forest of southeastern Brazil. They live from sea level up to about 2,500 m (8,200 ft).

They need closed-canopy tropical forest. That includes lowland rainforest, montane forest, dry forest, gallery forest along rivers and secondary forest, along with Amazonian and Atlantic coastal forest. Animal Diversity Web notes they are rarely found in palm jungle, cloud forest or thorn forest.

A 2016 genetic study found five distinct regional lineages across the range, from Costa Rica to the Brazilian Amazon, and suggested some subspecies might deserve species status. Outside the native range, escaped pet kinkajous were reported living in Florida in 2023.

Kinkajou vs olingo vs binturong

Kinkajous are often confused with olingos, their nocturnal, fruit-eating cousins, and sometimes with the binturong of Southeast Asia, the only other carnivoran with a prehensile tail.

Kinkajous also lack the anal scent glands that olingos have. Where the two feed together, the larger kinkajous drive olingos away when food is scarce.

Conservation status

The kinkajou is listed as Least Concern on the IUCN Red List. It has a large range and is more common than the olingos it lives alongside.

It does face pressure. Kinkajous are hunted for the pet trade, for their skins, used to make wallets and horse saddles, and for meat. Because they depend on closed-canopy forest, deforestation is a potential threat. Honduras has placed the species on CITES Appendix III, so exports from Honduras need a permit and exports from other countries need a certificate of origin.