Australian sharpnose shark vs common bottlenose dolphin

Rhizoprionodon oligolinx compared with Tursiops truncatus

Key Differences

• Australian sharpnose shark is Near Threatened while common bottlenose dolphin is Least Concern.

Taxonomic Classification

Rank	Australian sharpnose shark	common bottlenose dolphin
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Chondrichthyes (Cartilaginous Fish)	Mammalia (mamíferos)
Order	Carcharhiniformes (Ground Sharks)	Cetacea (Whales & Dolphins)
Family	Carcharhinidae	Delphinidae (Oceanic Dolphins)
Genus	Rhizoprionodon	Tursiops (Bottlenose Dolphins)
Species	Rhizoprionodon oligolinx	Tursiops truncatus

Evolutionary Relationship

Australian sharpnose shark and common bottlenose dolphin share a common ancestor at the Phylum level: Chordata. (cordados)

Conservation Status

Australian sharpnose shark

NT — Near Threatened

common bottlenose dolphin

LC — Least Concern

Population: ~600.0K

Trend: Stable →

Physical Characteristics

Attribute	Australian sharpnose shark	common bottlenose dolphin
Diet	—	Carnivore
Average Lifespan	—	45 years
Average Length	—	3.0 m
Average Weight	—	300.0 kg

Habitat & Geographic Range

Australian sharpnose shark

Habitat

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

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).

Australian sharpnose shark

The Australian sharpnose shark (Rhizoprionodon oligolinx) is a species in the genus Rhizoprionodon. It is currently classified as Near Threatened on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.

common bottlenose dolphin

A espécie de golfinho mais estudada e reconhecida, os roazes habitam oceanos quentes e temperados de todo o mundo, desde águas costeiras rasas até ao mar aberto. Altamente inteligentes com grandes cérebros em relação ao tamanho corporal, demonstram auto-reconhecimento, comunicação complexa e aprendizagem social. Vivem em sociedades fluidas de fissão-fusão e cooperam para arrebanhar peixes. Uma espécie indicadora chave da saúde dos ecossistemas marinhos.