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 (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	Rodentia (ネズミ目)	Diprotodontia (カンガルー目)
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. (哺乳類)

表示 Class: Mammalia

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

地球上で最も広く分布し個体数が多い哺乳類の一つであるハツカネズミは南アジアを起源とし、南極大陸を除くすべての大陸に人類文明とともに広まった。体重わずか15〜25gで、最小限の食物と水で生存できる高度に適応した雑食性動物である。世界で最も一般的に使用される実験動物として、生物医学研究のほぼすべての分野に貢献してきた。世界的に農業に多大な被害を与える。

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。