Arrowhead dogfish vs koala

Deania profundorum compared with Phascolarctos cinereus

Key Differences

• Arrowhead dogfish is Near Threatened while koala is Vulnerable.

Taxonomic Classification

Rank	Arrowhead dogfish	koala
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class	Elasmobranchii	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order	Squaliformes (อันดับปลาฉลามหลังหนาม)	Diprotodontia (Marsupials)
Family	Centrophoridae	Phascolarctidae (Koalas)
Genus	Deania	Phascolarctos (Koalas)
Species	Deania profundorum	Phascolarctos cinereus

Evolutionary Relationship

Arrowhead dogfish and koala share a common ancestor at the Phylum level: Chordata. (สัตว์มีแกนสันหลัง)

Conservation Status

Arrowhead dogfish

NT — Near Threatened

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Arrowhead dogfish	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Arrowhead dogfish

Habitat

Native to Asia and Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Portugal and Taiwan. 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.

Arrowhead dogfish

The Arrowhead dogfish, Deania profundorum, is a species. It is currently assessed as near threatened on the IUCN Red List. Native to Asia and Europe, inhabiting ecosystems characteristic of the region.

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.