Clouded Leopard vs Common Fat-tailed Mouse Opossum

Neofelis nebulosa compared with Thylamys pusillus

Key Differences

• Clouded Leopard is Vulnerable while Common Fat-tailed Mouse Opossum is Least Concern.

Taxonomic Classification

Rank	Clouded Leopard	Common Fat-tailed Mouse Opossum
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Carnivora (Carnivorans)	Didelphimorphia (Didelphimorphia)
Family	Felidae (Cats)	Didelphidae
Genus	Neofelis (Clouded Leopards)	Thylamys
Species	Neofelis nebulosa	Thylamys pusillus

Evolutionary Relationship

Clouded Leopard and Common Fat-tailed Mouse Opossum share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Clouded Leopard

VU — Vulnerable

Population: ~10.0K

Trend: Decreasing ↓

Common Fat-tailed Mouse Opossum

LC — Least Concern

Physical Characteristics

Attribute	Clouded Leopard	Common Fat-tailed Mouse Opossum
Diet	Carnivore	—
Average Lifespan	15 years	—
Average Length	1.0 m	—
Average Weight	20.0 kg	—

Habitat & Geographic Range

Clouded Leopard

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 11 distinct biome types spanning the Australasia and Indomalayan and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across China, Indonesia, Malaysia, Myanmar, and Thailand. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Common Fat-tailed Mouse Opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Clouded Leopard

A medium-sized wild cat weighing up to 26 kg, clouded leopards inhabit tropical and subtropical forests from the eastern Himalayas through Southeast Asia to Borneo. Named for their distinctive cloud-like coat markings, they possess the longest canine teeth relative to skull size of any wild cat and are exceptional climbers able to descend trees headfirst. Vulnerable due to deforestation, though the total population remains poorly known.

Common Fat-tailed Mouse Opossum

The Common Fat-tailed Mouse Opossum (<em>Thylamys pusillus</em>) is a small marsupial belonging to the genus Thylamys within the family Didelphidae. Like other members of its genus, this species typically stores fat in its tail, which becomes swollen during periods of food abundance and is metabolised during leaner times, a physiological adaptation that provides energy reserves. <em>Thylamys pusillus</em> is generally found in diverse terrestrial and aquatic ecosystems, often in dry woodlands, scrublands, and grassland habitats of South America. The species is assessed as Least Concern on the IUCN Red List, indicating it is not currently considered at risk of extinction. Detailed geographic range data are not available in the current record, but members of this genus are typically distributed across parts of Argentina, Bolivia, Paraguay, and Uruguay. Biological traits including average lifespan, body dimensions, and specific dietary composition remain poorly documented in the scientific literature, though Thylamys species are generally considered omnivorous, often consuming insects, small vertebrates, and plant material.