Bigeye Sixgill Shark vs koala

Hexanchus nakamurai compared with Phascolarctos cinereus

Key Differences

• Bigeye Sixgill Shark is Near Threatened while koala is Vulnerable.

Taxonomic Classification

Rank	Bigeye Sixgill Shark	koala
Kingdom same	Animalia (동물)	Animalia (동물)
Phylum same	Chordata (척삭동물)	Chordata (척삭동물)
Class	Elasmobranchii	Mammalia (포유류)
Order	Hexanchiformes (신락상어목)	Diprotodontia (캥거루목)
Family	Hexanchidae	Phascolarctidae (Koalas)
Genus	Hexanchus	Phascolarctos (Koalas)
Species	Hexanchus nakamurai	Phascolarctos cinereus

Evolutionary Relationship

Bigeye Sixgill Shark and koala share a common ancestor at the Phylum level: Chordata. (척삭동물)

Conservation Status

Bigeye Sixgill Shark

NT — Near Threatened

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Bigeye Sixgill Shark	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Bigeye Sixgill Shark

Habitat

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

Range

Distributed across Taiwan and 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.

Bigeye Sixgill Shark

The Bigeye Sixgill Shark (Hexanchus nakamurai) is a species in the genus Hexanchus. It is currently classified as Near Threatened on the IUCN Red List. Native to Asia and South America, inhabiting ecosystems characteristic of the region.

koala

호주 동부와 동남부의 상징적인 유대류로, 체중이 최대 15kg이며 저칼로리인 유칼립투스 잎 식단에서 에너지를 절약하기 위해 하루 최대 22시간을 잠으로 보낸다. 대부분의 다른 포유류를 죽일 수 있는 유독한 유칼립투스 성분을 처리하도록 고도로 특화되어, 해독에 특별히 적응된 장내 미생물총을 지닌다. 2022년 기후 변화, 서식지 개발, 클라미디아 감염으로 인한 개체수 감소로 위기종으로 지정되었다.