Koala vs Narrownose smooth hound

Phascolarctos cinereus compared with Mustelus schmitti

Key Differences

• Koala is Vulnerable while Narrownose smooth hound is Critically Endangered.

Taxonomic Classification

Rank	Koala	Narrownose smooth hound
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class	Mammalia (Säugetiere)	Chondrichthyes (Knorpelfische)
Order	Diprotodontia (Marsupials)	Carcharhiniformes (Grundhaie)
Family	Phascolarctidae (Koalas)	Triakidae
Genus	Phascolarctos (Koalas)	Mustelus
Species	Phascolarctos cinereus	Mustelus schmitti

Evolutionary Relationship

Koala and Narrownose smooth hound share a common ancestor at the Phylum level: Chordata. (Chordatiere)

Conservation Status

Koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Narrownose smooth hound

CR — Critically Endangered

Physical Characteristics

Attribute	Koala	Narrownose smooth hound
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.

Narrownose smooth hound

Habitat

Typically found in marine environments from coastal waters to deep ocean.

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.