Collared Worm Salamander vs koala

Oedipina collaris compared with Phascolarctos cinereus

Key Differences

Collared Worm Salamander is Data Deficient while koala is Vulnerable.

Taxonomic Classification

Rank	Collared Worm Salamander	koala
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Amphibia (両生類)	Mammalia (哺乳類)
Order	Caudata (有尾目)	Diprotodontia (カンガルー目)
Family	Plethodontidae	Phascolarctidae (Koalas)
Genus	Oedipina	Phascolarctos (Koalas)
Species	Oedipina collaris	Phascolarctos cinereus

Evolutionary Relationship

Collared Worm Salamander and koala share a common ancestor at the Phylum level: Chordata. (脊索動物)

表示 Phylum: Chordata

Conservation Status

Collared Worm Salamander

DD — Data Deficient

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Collared Worm Salamander	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Collared Worm Salamander

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

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.

Collared Worm Salamander

The Collared Worm Salamander, known scientifically as Oedipina collaris, is a slender, elongated salamander belonging to the family Plethodontidae, the lungless salamanders. Oedipina collaris is characterised by its worm-like body form, extremely elongated trunk with many vertebrae, short limbs, and a long tail — morphological features that adapt the species for a burrowing or semi-fossorial lifestyle. As a plethodontid salamander, Oedipina collaris lacks lungs and respires entirely through its moist skin, making it highly dependent on humid environments. The species inhabits freshwater habitats, moist forests, and wetlands. Detailed biological traits including typical lifespan, body length, and weight are poorly documented for this species in available literature. The Collared Worm Salamander is currently assessed as Data Deficient on the IUCN Red List, indicating that insufficient information is available to determine its conservation status accurately, and further research on the species' distribution and population trends is required.

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。