koala vs Tomes's Rice Rat

Phascolarctos cinereus compared with Nephelomys albigularis

Key Differences

koala is Vulnerable while Tomes's Rice Rat is Least Concern.

Taxonomic Classification

Rank	koala	Tomes's Rice Rat
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class same	Mammalia (哺乳類)	Mammalia (哺乳類)
Order	Diprotodontia (カンガルー目)	Rodentia (ネズミ目)
Family	Phascolarctidae (Koalas)	Cricetidae
Genus	Phascolarctos (Koalas)	Nephelomys
Species	Phascolarctos cinereus	Nephelomys albigularis

Evolutionary Relationship

koala and Tomes's Rice Rat share a common ancestor at the Class level: Mammalia. (哺乳類)

表示 Class: Mammalia

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Tomes's Rice Rat

LC — Least Concern

Physical Characteristics

Attribute	koala	Tomes's Rice Rat
Diet	Herbivore	—
Average Lifespan	15 years	—
Average Length	75 cm	—
Average Weight	10.0 kg	—

Habitat & Geographic Range

koala

Habitat

Typically found in grasslands, forests, and vegetated habitats.

Range

Found in Australia. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Tomes's Rice Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Ecuador.

koala

オーストラリア東部・南東部を代表する有袋類で、体重は最大15kgに達し、低カロリーのユーカリの葉食から得るエネルギーを節約するために1日最大22時間を睡眠に費やす。他の哺乳類の多くを死に至らしめる有毒なユーカリ成分を処理するために高度に特化しており、解毒に特別に適応した腸内微生物叢を持つ。クラミジア感染症、生息地の伐採、気候変動により個体数が激減し、2022年に絶滅危惧種に指定された。