6-gilled shark vs common bottlenose dolphin

Hexanchus griseus compared with Tursiops truncatus

Key Differences

• 6-gilled shark is Not Evaluated while common bottlenose dolphin is Least Concern.

Taxonomic Classification

Rank	6-gilled shark	common bottlenose dolphin
Kingdom same	Animalia (동물)	Animalia (동물)
Phylum same	Chordata (척삭동물)	Chordata (척삭동물)
Class	Elasmobranchii	Mammalia (포유류)
Order	Hexanchiformes (신락상어목)	Cetacea (Whales & Dolphins)
Family	Hexanchidae	Delphinidae (Oceanic Dolphins)
Genus	Hexanchus	Tursiops (Bottlenose Dolphins)
Species	Hexanchus griseus	Tursiops truncatus

Evolutionary Relationship

6-gilled shark and common bottlenose dolphin share a common ancestor at the Phylum level: Chordata. (척삭동물)

Conservation Status

6-gilled shark

NE — Not Evaluated

common bottlenose dolphin

LC — Least Concern

Population: ~600.0K

Trend: Stable →

Physical Characteristics

Attribute	6-gilled shark	common bottlenose dolphin
Diet	—	Carnivore
Average Lifespan	—	45 years
Average Length	—	3.0 m
Average Weight	—	300.0 kg

Habitat & Geographic Range

6-gilled shark

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Chile, Venezuela).

common bottlenose dolphin

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 12 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), and South America (Colombia, Ecuador, Venezuela).

6-gilled shark

The 6-gilled shark (Hexanchus griseus) is a species in the genus Hexanchus. It is not yet evaluated on the IUCN Red List. It is found across Chile, Denmark, Norway, and 2 other countries, inhabiting Native to Asia and Europe and South America, inhabiting ecosystems characteristic of the region.

common bottlenose dolphin

가장 많이 연구되고 잘 알려진 돌고래 종인 큰돌고래는 연안 얕은 곳부터 먼 바다까지 전 세계 온난하고 온대 해양에 서식합니다. 체구 대비 큰 뇌를 가진 고도로 지능적인 이 종은 자기 인식, 복잡한 의사소통 및 사회적 학습을 보여줍니다. 유동적인 분열-융합 사회에서 살며 물고기를 몰기 위해 협력합니다. 해양 생태계 건강의 핵심 지표 종입니다.

Shared Countries

Both species can be found in 6 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden 🇹🇼 Taiwan 🇻🇪 Venezuela