Brazilian large-eyed stingray vs koala

Hypanus marianae compared with Phascolarctos cinereus

Key Differences

• Brazilian large-eyed stingray is Endangered while koala is Vulnerable.

Taxonomic Classification

Rank	Brazilian large-eyed stingray	koala
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class	Elasmobranchii	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order	Myliobatiformes (อันดับปลากระเบน)	Diprotodontia (Marsupials)
Family	Dasyatidae	Phascolarctidae (Koalas)
Genus	Hypanus	Phascolarctos (Koalas)
Species	Hypanus marianae	Phascolarctos cinereus

Evolutionary Relationship

Brazilian large-eyed stingray and koala share a common ancestor at the Phylum level: Chordata. (สัตว์มีแกนสันหลัง)

Conservation Status

Brazilian large-eyed stingray

EN — Endangered

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Brazilian large-eyed stingray	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Brazilian large-eyed stingray

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.

Brazilian large-eyed stingray

The Brazilian large-eyed stingray (Hypanus marianae) is a species in the genus Hypanus. It is currently classified as Endangered on the IUCN Red List.

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.