Mammals
Clouded Leopard
Neofelis nebulosa · also called mainland clouded leopard, mint leopard
The clouded leopard is one of the most secretive and least-known cats in the world — a medium-sized, superbly arboreal predator of Southeast Asian forests, marked with the large blotches that give it its name and armed with teeth that look borrowed from a sabre-tooth.
Overview
Clouded leopards live in the forests of mainland Southeast Asia and the eastern Himalaya, from Nepal and northeastern India through Myanmar and southern China to Indochina. They favour dense evergreen tropical forest but also use dry forest, mangroves, and grassland-forest mosaics up to around 3,000 m. They are solitary, elusive, and mostly active at dusk and night, and are so rarely observed that much of what is known comes from camera traps and captive animals.
A cat built for trees
The clouded leopard is arguably the most arboreal of all cats:
- Rotating hind ankles allow it to climb down trees head-first — something most cats cannot do — and to move along the undersides of branches.
- It can hang from a branch by one hind foot, freeing its forepaws.
- Its tail is as long as its body, providing balance in the canopy.
- Short, powerful legs and large paws give it a strong grip.
Sabre-tooth teeth
The clouded leopard’s upper canines are the longest of any living cat relative to skull size, and its jaws open to an unusually wide gape. This combination has drawn repeated comparison to the extinct sabre-toothed cats, and it appears to be an adaptation for killing prey that is large relative to the cat’s own modest body weight — often by a bite to the back of the neck delivered in an ambush from above or from cover.
Diet
Clouded leopards take a wide range of prey — primates (macaques, gibbons, langurs), small deer, wild pigs, porcupines, birds, and squirrels — hunting both in the trees and on the ground. They are strong swimmers and will cross rivers.
Reproduction
Breeding is difficult even in captivity, partly because males can be aggressive toward females; captive-breeding programmes now pair cats young to build a bond. Litters of one to five cubs are born in a tree hollow or dense thicket after about 90 days, and are weaned at around three months.
Threats and conservation
The clouded leopard is Vulnerable and declining. The dominant threat is large-scale deforestation across Southeast Asia, which removes and fragments its habitat, followed by poaching — its distinctive pelt is one of the most commonly seized cat skins in the region’s illegal markets, and bones, canines, and claws are also traded, with live cubs taken for the pet trade. Protecting large connected blocks of forest and cracking down on trafficking are the priorities.
Clouded Leopard: common questions
Is a clouded leopard a type of leopard?
No. Despite the name it is not closely related to the true leopard, and it is placed in its own genus, Neofelis. It sits between the small cats and the big cats — it is one of the larger felines but cannot roar (its hyoid bone is bony, like a small cat's) and it purrs. There are two species — the mainland clouded leopard and the Sunda clouded leopard of Borneo and Sumatra, recognised as separate in 2006.
Why does the clouded leopard have such long teeth?
Its upper canines are proportionally the longest of any living cat, and the gap behind them and the very wide jaw gape have led scientists to compare it to the extinct sabre-toothed cats. The likely reason is its prey and hunting style — it kills relatively large animals, often from an ambush drop out of a tree, and long canines driven into the neck or skull are effective for a quick kill by a cat that is not heavy enough to overpower big prey by grappling.
How well does a clouded leopard climb?
Exceptionally. It is among the most arboreal of all cats. Its rotating hind ankle joints let it climb down a trunk head-first, walk along the underside of a branch, and hang from a branch by a single hind foot to reach fruit-eating prey or descend. The very long tail acts as a counterweight. Clouded leopards rest, and sometimes ambush prey, high in the canopy, though they also hunt on the ground.
Why are clouded leopards threatened?
Deforestation is the primary cause — the lowland and hill forests of Southeast Asia are being cleared for oil palm, rubber, timber, and agriculture faster than almost anywhere on Earth, fragmenting and shrinking clouded leopard range. They are also heavily poached — their strikingly marked pelts are among the most frequently found in illegal wildlife markets in the region, and their bones, teeth, and claws are traded, and live cubs taken for pets.