koala vs 白头硬尾鸭

Phascolarctos cinereus compared with Oxyura leucocephala

Key Differences

• koala is Vulnerable while 白头硬尾鸭 is Not Evaluated.

Taxonomic Classification

Rank	koala	白头硬尾鸭
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class	Mammalia (哺乳動物)	Aves (鳥綱)
Order	Diprotodontia (雙門齒目)	Anseriformes (雁形目)
Family	Phascolarctidae (Koalas)	Anatidae
Genus	Phascolarctos (Koalas)	Oxyura
Species	Phascolarctos cinereus	Oxyura leucocephala

Evolutionary Relationship

koala and 白头硬尾鸭 share a common ancestor at the Phylum level: Chordata. (脊索动物门)

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

白头硬尾鸭

NE — Not Evaluated

Physical Characteristics

Attribute	koala	白头硬尾鸭
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.

白头硬尾鸭

Habitat

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

Range

Found across Europe (9 countries).

koala

澳大利亚东部和东南部的标志性有袋类动物，体重最大可达15千克，为了节省低热量桉树叶食物所提供的能量，每天最多睡眠22小时。高度特化，能够处理会致大多数其他哺乳动物死亡的有毒桉树成分，拥有专门适应解毒功能的肠道微生物群。因衣原体病、栖息地开发和气候变化导致种群锐减，2022年被列为濒危物种。

白头硬尾鸭

白头硬尾鸭（Oxyura leucocephala）被IUCN红色名录列为未评估（NE）。尚未依据IUCN红色名录标准进行评估，保育状况有待确定。