Aquatic oligochaete worm vs koala

Potamothrix bavaricus compared with Phascolarctos cinereus

Key Differences

Aquatic oligochaete worm is Not Evaluated while koala is Vulnerable.

Taxonomic Classification

Rank	Aquatic oligochaete worm	koala
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Annelida (環形動物)	Chordata (脊索動物)
Class	Clitellata (環帯類)	Mammalia (哺乳類)
Order	Tubificida (Tubificida)	Diprotodontia (カンガルー目)
Family	Naididae	Phascolarctidae (Koalas)
Genus	Potamothrix	Phascolarctos (Koalas)
Species	Potamothrix bavaricus	Phascolarctos cinereus

Evolutionary Relationship

Aquatic oligochaete worm and koala share a common ancestor at the Kingdom level: Animalia. (動物)

表示 Kingdom: Animalia

Conservation Status

Aquatic oligochaete worm

NE — Not Evaluated

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Aquatic oligochaete worm	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Aquatic oligochaete worm

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Found across Europe (7 countries) and North America (United States).

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.

Aquatic oligochaete worm

The Aquatic oligochaete worm (Potamothrix bavaricus) is a species in the genus Potamothrix. Native to Europe and North America, inhabiting ecosystems characteristic of the region.

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。