Blunt shovel nose ray vs common bottlenose dolphin

Glaucostegus obtusus compared with Tursiops truncatus

Key Differences

• Blunt shovel nose ray is Critically Endangered while common bottlenose dolphin is Least Concern.

Taxonomic Classification

Rank	Blunt shovel nose ray	common bottlenose dolphin
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Elasmobranchii	Mammalia (mamíferos)
Order	Rhinopristiformes (Rhinopristiformes)	Cetacea (Whales & Dolphins)
Family	Glaucostegidae	Delphinidae (Oceanic Dolphins)
Genus	Glaucostegus	Tursiops (Bottlenose Dolphins)
Species	Glaucostegus obtusus	Tursiops truncatus

Evolutionary Relationship

Blunt shovel nose ray and common bottlenose dolphin share a common ancestor at the Phylum level: Chordata. (cordados)

Conservation Status

Blunt shovel nose ray

CR — Critically Endangered

common bottlenose dolphin

LC — Least Concern

Population: ~600.0K

Trend: Stable →

Physical Characteristics

Attribute	Blunt shovel nose ray	common bottlenose dolphin
Diet	—	Carnivore
Average Lifespan	—	45 years
Average Length	—	3.0 m
Average Weight	—	300.0 kg

Habitat & Geographic Range

Blunt shovel nose ray

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).

Blunt shovel nose ray

The Blunt shovel nose ray (Glaucostegus obtusus) is a species in the genus Glaucostegus. It is currently classified as Critically Endangered on the IUCN Red List.

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.