house mouse vs koala

Mus musculus compared with Phascolarctos cinereus

Key Differences

• house mouse is Least Concern while koala is Vulnerable.
• house mouse is omnivore while koala is herbivore.
• koala is 500.0x heavier than house mouse.
• koala lives longer (15 years vs 2 years).

Taxonomic Classification

Rank	house mouse	koala
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 same	Mammalia (哺乳動物)	Mammalia (哺乳動物)
Order	Rodentia (啮齿目)	Diprotodontia (雙門齒目)
Family	Muridae (Mice & Rats)	Phascolarctidae (Koalas)
Genus	Mus (House Mice)	Phascolarctos (Koalas)
Species	Mus musculus	Phascolarctos cinereus

Evolutionary Relationship

house mouse and koala share a common ancestor at the Class level: Mammalia. (哺乳動物)

Conservation Status

house mouse

LC — Least Concern

Trend: Stable →

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	house mouse	koala
Diet	Omnivore	Herbivore
Average Lifespan	2 years	15 years
Average Length	9 cm	75 cm
Average Weight	20 g	10.0 kg

Habitat & Geographic Range

house mouse

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and flooded grasslands and savannas, among 8 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (9 countries), Asia (13 countries), Europe (41 countries), North America (14 countries), Oceania and the Pacific (12 countries), and South America (10 countries).

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.

house mouse

小家鼠是地球上分布最广、数量最多的哺乳动物之一，起源于南亚，随着人类文明扩散到南极洲以外的各大陆。体重仅15至25克，是高度适应性强的杂食动物，能以极少的食物和水存活。作为世界上最常用的实验动物，小家鼠为几乎所有生物医学研究领域做出了贡献。在全球范围内对农业造成严重损害。

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。

Shared Countries

Both species can be found in 1 countries:

🇦🇺 Australia