Eurasian Wigeon vs koala

Mareca penelope compared with Phascolarctos cinereus

Taxonomic Classification

Rank	Eurasian Wigeon	koala
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Aves (鳥類)	Mammalia (哺乳類)
Order	Anseriformes (カモ目)	Diprotodontia (カンガルー目)
Family	Anatidae	Phascolarctidae (Koalas)
Genus	Mareca	Phascolarctos (Koalas)
Species	Mareca penelope	Phascolarctos cinereus

Evolutionary Relationship

Eurasian Wigeon and koala share a common ancestor at the Phylum level: Chordata. (脊索動物)

表示 Phylum: Chordata

Conservation Status

Eurasian Wigeon

VU — Vulnerable

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Eurasian Wigeon	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Eurasian Wigeon

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and North America (United States). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its 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.

Eurasian Wigeon

ヒドリガモ（Mareca penelope）はIUCNレッドリストで危急（VU）に分類されています。野生での危機的状況に陥る高いリスクがあり、個体数が減少し、生息地への圧力が増しています。

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。