Australian cow-nose ray vs koala

Rhinoptera neglecta compared with Phascolarctos cinereus

Key Differences

• Australian cow-nose ray is Data Deficient while koala is Vulnerable.

Taxonomic Classification

Rank	Australian cow-nose ray	koala
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Elasmobranchii	Mammalia (哺乳類)
Order	Myliobatiformes (トビエイ目)	Diprotodontia (カンガルー目)
Family	Myliobatidae	Phascolarctidae (Koalas)
Genus	Rhinoptera	Phascolarctos (Koalas)
Species	Rhinoptera neglecta	Phascolarctos cinereus

Evolutionary Relationship

Australian cow-nose ray and koala share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Australian cow-nose ray

DD — Data Deficient

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Australian cow-nose ray	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Australian cow-nose ray

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.

Australian cow-nose ray

The Australian cow-nose ray (Rhinoptera neglecta) is a species in the genus Rhinoptera. Its conservation status is listed as Data Deficient, indicating insufficient data for assessment. Rhinoptera neglecta contributes to the biodiversity of its native ecosystems.

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。