common bottlenose dolphin vs St John's Rollandia

Tursiops truncatus compared with Cyanea spec

Key Differences

• common bottlenose dolphin is Least Concern while St John's Rollandia is Critically Endangered.

Taxonomic Classification

Rank	common bottlenose dolphin	St John's Rollandia
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (cordados)	Cnidaria (cnidários)
Class	Mammalia (mamíferos)	Scyphozoa (Scyphozoa)
Order	Cetacea (Whales & Dolphins)	Semaeostomeae (Semaeostomeae)
Family	Delphinidae (Oceanic Dolphins)	Cyaneidae
Genus	Tursiops (Bottlenose Dolphins)	Cyanea
Species	Tursiops truncatus	Cyanea spec

Evolutionary Relationship

common bottlenose dolphin and St John's Rollandia share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

common bottlenose dolphin

LC — Least Concern

Population: ~600.0K

Trend: Stable →

St John's Rollandia

CR — Critically Endangered

Physical Characteristics

Attribute	common bottlenose dolphin	St John's Rollandia
Diet	Carnivore	—
Average Lifespan	45 years	—
Average Length	3.0 m	—
Average Weight	300.0 kg	—

Habitat & Geographic Range

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).

St John's Rollandia

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.