Common Fat-tailed Mouse Opossum vs Killdeer

Thylamys pusillus compared with Charadrius vociferus

Taxonomic Classification

Rank	Common Fat-tailed Mouse Opossum	Killdeer
Kingdom same	Animalia (동물)	Animalia (동물)
Phylum same	Chordata (척삭동물)	Chordata (척삭동물)
Class	Mammalia (포유류)	Aves (새)
Order	Didelphimorphia (주머니쥐)	Charadriiformes (도요목)
Family	Didelphidae	Charadriidae
Genus	Thylamys	Charadrius
Species	Thylamys pusillus	Charadrius vociferus

Evolutionary Relationship

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

Conservation Status

Common Fat-tailed Mouse Opossum

LC — Least Concern

Killdeer

LC — Least Concern

Physical Characteristics

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

Habitat & Geographic Range

Common Fat-tailed Mouse Opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Killdeer

Habitat

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

Range

Widely distributed across Europe (Norway, Sweden), North America (United States), and South America (Colombia, Ecuador, 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.

Killdeer

킬디어물떼새(Charadrius vociferus)는 IUCN 적색목록에서 관심 필요 없음(LC)으로 분류되어 있다. 서식 범위 전반에 걸쳐 광범위하게 분포하고 개체수가 안정적이며, 즉각적인 보전 우려가 없다.