koala vs 白腹林星蜂鳥

Phascolarctos cinereus compared with Chaetocercus mulsant

Key Differences

• koala is Vulnerable while 白腹林星蜂鳥 is Least Concern.

Taxonomic Classification

Rank	koala	白腹林星蜂鳥
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)	Apodiformes (雨燕目)
Family	Phascolarctidae (Koalas)	Trochilidae
Genus	Phascolarctos (Koalas)	Chaetocercus
Species	Phascolarctos cinereus	Chaetocercus mulsant

Evolutionary Relationship

koala and 白腹林星蜂鳥 share a common ancestor at the Phylum level: Chordata. (脊索动物门)

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

白腹林星蜂鳥

LC — Least Concern

Physical Characteristics

Attribute	koala	白腹林星蜂鳥
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.

白腹林星蜂鳥

Habitat

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

Range

Distributed across Colombia, Ecuador, and Norway.

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。

白腹林星蜂鳥

白腹林星蜂鸟（Chaetocercus mulsant）是栖息于哥伦比亚至玻利维亚安第斯山脉及山间谷地的小型林星蜂鸟，雄鸟体重仅约2.5克，是体型最小的蜂鸟之一。雄鸟展示艳丽的紫红色喉斑、白色腹部和绿色胁部。见于海拔1,500至3,500米的林缘和花园。尽管体型娇小，却颇具攻击性且机动灵活，夜间进入蛰伏状态以在寒冷的安第斯环境中节省能量。