Bartail spurdog vs koala

Squalus notocaudatus compared with Phascolarctos cinereus

Key Differences

• Bartail spurdog is Least Concern while koala is Vulnerable.

Taxonomic Classification

Rank	Bartail spurdog	koala
Kingdom same	Animalia (hayvan)	Animalia (hayvan)
Phylum same	Chordata (Kordalılar)	Chordata (Kordalılar)
Class	Elasmobranchii	Mammalia (memeliler)
Order	Squaliformes (Squaliformes)	Diprotodontia (İki ön dişliler)
Family	Squalidae	Phascolarctidae (Koalas)
Genus	Squalus	Phascolarctos (Koalas)
Species	Squalus notocaudatus	Phascolarctos cinereus

Evolutionary Relationship

Bartail spurdog and koala share a common ancestor at the Phylum level: Chordata. (Kordalılar)

Conservation Status

Bartail spurdog

LC — Least Concern

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Bartail spurdog	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Bartail spurdog

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.

Bartail spurdog

The Bartail spurdog (Squalus notocaudatus) is a species in the genus Squalus. It is currently classified as Least Concern 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.