Pastenague américaine vs koala

Hypanus americanus compared with Phascolarctos cinereus

Key Differences

• Pastenague américaine is Near Threatened while koala is Vulnerable.

Taxonomic Classification

Rank	Pastenague américaine	koala
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (mammifères)
Order	Myliobatiformes (Myliobatiformes)	Diprotodontia (Marsupials)
Family	Dasyatidae	Phascolarctidae (Koalas)
Genus	Hypanus	Phascolarctos (Koalas)
Species	Hypanus americanus	Phascolarctos cinereus

Evolutionary Relationship

Pastenague américaine and koala share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Pastenague américaine

NT — Near Threatened

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Pastenague américaine	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Pastenague américaine

Habitat

Native to South America, inhabiting ecosystems characteristic of the region.

Range

Found in Venezuela. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

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.