Common Fat-tailed Mouse Opossum vs Crested Myna

Thylamys pusillus compared with Acridotheres cristatellus

Taxonomic Classification

Rank	Common Fat-tailed Mouse Opossum	Crested Myna
Kingdom same	Animalia (동물)	Animalia (동물)
Phylum same	Chordata (척삭동물)	Chordata (척삭동물)
Class	Mammalia (포유류)	Aves (새)
Order	Didelphimorphia (주머니쥐)	Passeriformes (참새목)
Family	Didelphidae	Sturnidae
Genus	Thylamys	Acridotheres
Species	Thylamys pusillus	Acridotheres cristatellus

Evolutionary Relationship

Common Fat-tailed Mouse Opossum and Crested Myna share a common ancestor at the Phylum level: Chordata. (척삭동물)

Conservation Status

Common Fat-tailed Mouse Opossum

LC — Least Concern

Crested Myna

LC — Least Concern

Physical Characteristics

Attribute	Common Fat-tailed Mouse Opossum	Crested Myna
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Fat-tailed Mouse Opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Crested Myna

Habitat

Inhabits tropical and subtropical dry broadleaf forests and tropical and subtropical grasslands and savannas within the Neotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Japan, Singapore, United Arab Emirates), Europe (7 countries), and South America (Argentina, Bolivia).

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.

Crested Myna

볏구관조(Acridotheres cristatellus)는 IUCN 적색 목록에서 최소 관심(LC) 종으로 분류된다. 분포 범위 내에서 널리 서식하며 개체수가 안정적으로 즉각적인 보전 우려가 없다.