koala vs western roe deer

Phascolarctos cinereus compared with Capreolus capreolus

Key Differences

• koala is Vulnerable while western roe deer is Least Concern.

Taxonomic Classification

Rank	koala	western roe deer
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)	Artiodactyla (偶蹄目)
Family	Phascolarctidae (Koalas)	Cervidae (Deer)
Genus	Phascolarctos (Koalas)	Capreolus
Species	Phascolarctos cinereus	Capreolus capreolus

Evolutionary Relationship

koala and western roe deer share a common ancestor at the Class level: Mammalia. (哺乳類)

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

western roe deer

LC — Least Concern

Physical Characteristics

Attribute	koala	western roe deer
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.

western roe deer

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found across Europe (7 countries).

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。

western roe deer

ノロジカ(Capreolus capreolus)は、IUCNレッドリストで軽度懸念(LC)に分類される。生息域全体にわたり広く分布し個体群は安定しており、直接的な保全上の懸念はない。