koala vs Lusitanian cow-nose ray

Phascolarctos cinereus compared with Rhinoptera marginata

Key Differences

• koala is Vulnerable while Lusitanian cow-nose ray is Critically Endangered.

Taxonomic Classification

Rank	koala	Lusitanian cow-nose ray
Kingdom same	Animalia (حيوانات)	Animalia (حيوانات)
Phylum same	Chordata (حبليات)	Chordata (حبليات)
Class	Mammalia (ثدييات)	Elasmobranchii
Order	Diprotodontia (ثنائيات الأسنان الأمامية)	Myliobatiformes (لخمة بهشية)
Family	Phascolarctidae (Koalas)	Myliobatidae
Genus	Phascolarctos (Koalas)	Rhinoptera
Species	Phascolarctos cinereus	Rhinoptera marginata

Evolutionary Relationship

koala and Lusitanian cow-nose ray share a common ancestor at the Phylum level: Chordata. (حبليات)

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Lusitanian cow-nose ray

CR — Critically Endangered

Physical Characteristics

Attribute	koala	Lusitanian cow-nose ray
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.

Lusitanian cow-nose ray

koala

Iconic marsupial of eastern and southeastern Australia, koalas weigh up to 15 kg and spend up to 22 hours daily sleeping to conserve energy from their low-calorie eucalyptus leaf diet. Highly specialized to process toxic eucalyptus compounds that would kill most other mammals, they have gut microbiomes uniquely adapted for detoxification. Listed as Endangered in 2022, with populations decimated by chlamydia disease, habitat clearing, and climate change.