common bottlenose dolphin vs New Zealand Sea Lion

Tursiops truncatus compared with Phocarctos hookeri

Key Differences

• common bottlenose dolphin is Least Concern while New Zealand Sea Lion is Endangered.

Taxonomic Classification

Rank	common bottlenose dolphin	New Zealand Sea Lion
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum same	Chordata (хордовые)	Chordata (хордовые)
Class same	Mammalia (млекопитающие)	Mammalia (млекопитающие)
Order	Cetacea (Whales & Dolphins)	Carnivora (хищные)
Family	Delphinidae (Oceanic Dolphins)	Otariidae
Genus	Tursiops (Bottlenose Dolphins)	Phocarctos
Species	Tursiops truncatus	Phocarctos hookeri

Evolutionary Relationship

common bottlenose dolphin and New Zealand Sea Lion share a common ancestor at the Class level: Mammalia. (млекопитающие)

Conservation Status

common bottlenose dolphin

LC — Least Concern

Population: ~600.0K

Trend: Stable →

New Zealand Sea Lion

EN — Endangered

Physical Characteristics

Attribute	common bottlenose dolphin	New Zealand Sea Lion
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).

New Zealand Sea Lion

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.