Common Fat-tailed Mouse Opossum vs Yellow-browed Sparrow

Thylamys pusillus compared with Ammodramus aurifrons

Taxonomic Classification

Rank	Common Fat-tailed Mouse Opossum	Yellow-browed Sparrow
Kingdom same	Animalia (동물)	Animalia (동물)
Phylum same	Chordata (척삭동물)	Chordata (척삭동물)
Class	Mammalia (포유류)	Aves (새)
Order	Didelphimorphia (주머니쥐)	Passeriformes (참새목)
Family	Didelphidae	Passerellidae
Genus	Thylamys	Ammodramus
Species	Thylamys pusillus	Ammodramus aurifrons

Evolutionary Relationship

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

Conservation Status

Common Fat-tailed Mouse Opossum

LC — Least Concern

Yellow-browed Sparrow

LC — Least Concern

Physical Characteristics

Attribute	Common Fat-tailed Mouse Opossum	Yellow-browed Sparrow
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Fat-tailed Mouse Opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Yellow-browed Sparrow

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

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.

Yellow-browed Sparrow

노란눈썹참새(Ammodramus aurifrons)는 IUCN 적색목록에서 최소관심(LC)으로 분류되어 있습니다. 남아메리카 아마존 유역 및 오리노코 유역의 초지, 목초지, 논 경작지에 서식하는 소형 참새과 조류로, 넓은 분포 범위와 안정적인 개체군을 유지하고 있습니다.