koala vs plains zebra

Phascolarctos cinereus compared with Equus quagga

Key Differences

koala is Vulnerable while plains zebra is Near Threatened.
plains zebra is 35.0x heavier than koala.
plains zebra lives longer (25 years vs 15 years).

Taxonomic Classification

Rank	koala	plains zebra
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	Diprotodontia (カンガルー目)	Perissodactyla (奇蹄目)
Family	Phascolarctidae (Koalas)	Equidae (Horses & Zebras)
Genus	Phascolarctos (Koalas)	Equus (Horses & Zebras)
Species	Phascolarctos cinereus	Equus quagga

Evolutionary Relationship

koala and plains zebra share a common ancestor at the Class level: Mammalia. (哺乳類)

表示 Class: Mammalia

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

plains zebra

NT — Near Threatened

Population: ~750.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	koala	plains zebra
Diet	Herbivore	Herbivore
Average Lifespan	15 years	25 years
Average Length	75 cm	2.3 m
Average Weight	10.0 kg	350.0 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.

plains zebra

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical grasslands and savannas, and flooded grasslands and savannas, among 5 distinct biome types within the Afrotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Botswana, Ethiopia, Kenya, South Africa, and Tanzania. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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。

plains zebra

最も個体数の多い野生の馬科動物であるサバンナシマウマ（Equus quagga）は、東アフリカと南アフリカの草原およびサバンナに小さな家族グループから大規模な集団まで様々な形で生息する。個体ごとに独特の白黒の縞模様は、捕食者を混乱させ、吸血昆虫を防ぎ、個体識別を助けると考えられている。シマウマはライオン、ハイエナ、ワニの主要な餌となり、サバンナの食物網を支える。