koala vs true senna

Phascolarctos cinereus compared with Senna alexandrina

Key Differences

• koala is Vulnerable while true senna is Not Evaluated.

Taxonomic Classification

Rank	koala	true senna
Kingdom	Animalia (動物)	Plantae (植物)
Phylum	Chordata (脊索動物)	Magnoliophyta (被子植物門)
Class	Mammalia (哺乳類)	Magnoliopsida (モクレン綱)
Order	Diprotodontia (カンガルー目)	Fabales (マメ目)
Family	Phascolarctidae (Koalas)	Fabaceae
Genus	Phascolarctos (Koalas)	Senna
Species	Phascolarctos cinereus	Senna alexandrina

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

true senna

NE — Not Evaluated

Physical Characteristics

Attribute	koala	true senna
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.

true senna

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Widely distributed across Asia (Iraq, Qatar, Taiwan), Europe (Sweden), and South America (Brazil, Colombia, Ecuador).

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。