common bottlenose dolphin vs Eastern highfin spurdog

Tursiops truncatus compared with Squalus albifrons

Taxonomic Classification

Rank	common bottlenose dolphin	Eastern highfin spurdog
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum same	Chordata (động vật có dây sống)	Chordata (động vật có dây sống)
Class	Mammalia (lớp Thú)	Elasmobranchii
Order	Cetacea (Whales & Dolphins)	Squaliformes (Bộ Cá nhám góc)
Family	Delphinidae (Oceanic Dolphins)	Squalidae
Genus	Tursiops (Bottlenose Dolphins)	Squalus
Species	Tursiops truncatus	Squalus albifrons

Evolutionary Relationship

common bottlenose dolphin and Eastern highfin spurdog share a common ancestor at the Phylum level: Chordata. (động vật có dây sống)

Conservation Status

common bottlenose dolphin

LC — Least Concern

Population: ~600.0K

Trend: Stable →

Eastern highfin spurdog

LC — Least Concern

Physical Characteristics

Attribute	common bottlenose dolphin	Eastern highfin spurdog
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).

Eastern highfin spurdog

common bottlenose dolphin

The most studied and recognized dolphin species, bottlenose dolphins inhabit warm and temperate oceans worldwide, from coastal shallows to the open sea. Highly intelligent with large brains relative to body size, they demonstrate self-recognition, complex communication, and social learning. They live in fluid fission-fusion societies and cooperate to herd fish. A keystone indicator species for marine ecosystem health.