Australian butterfly ray vs Koala

Gymnura australis compared with Phascolarctos cinereus

Key Differences

• Australian butterfly ray is Least Concern while Koala is Vulnerable.

Taxonomic Classification

Rank	Australian butterfly ray	Koala
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class	Elasmobranchii	Mammalia (Säugetiere)
Order	Myliobatiformes (Stechrochenartige)	Diprotodontia (Marsupials)
Family	Gymnuridae	Phascolarctidae (Koalas)
Genus	Gymnura	Phascolarctos (Koalas)
Species	Gymnura australis	Phascolarctos cinereus

Evolutionary Relationship

Australian butterfly ray and Koala share a common ancestor at the Phylum level: Chordata. (Chordatiere)

Conservation Status

Australian butterfly ray

LC — Least Concern

Koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Australian butterfly ray	Koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Australian butterfly 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 butterfly ray

The Australian butterfly ray (Gymnura australis) is a species in the genus Gymnura. It is currently classified as Least Concern on the IUCN Red List. Gymnura australis contributes to the biodiversity of its native ecosystems.

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.