Оклендский крохаль vs common bottlenose dolphin

Mergus australis compared with Tursiops truncatus

Key Differences

• Оклендский крохаль is Extinct while common bottlenose dolphin is Least Concern.

Taxonomic Classification

Rank	Оклендский крохаль	common bottlenose dolphin
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum same	Chordata (хордовые)	Chordata (хордовые)
Class	Aves (птицы)	Mammalia (млекопитающие)
Order	Anseriformes (гусеобразные)	Cetacea (Whales & Dolphins)
Family	Anatidae	Delphinidae (Oceanic Dolphins)
Genus	Mergus	Tursiops (Bottlenose Dolphins)
Species	Mergus australis	Tursiops truncatus

Evolutionary Relationship

Оклендский крохаль and common bottlenose dolphin share a common ancestor at the Phylum level: Chordata. (хордовые)

Conservation Status

Оклендский крохаль

EX — Extinct

common bottlenose dolphin

LC — Least Concern

Population: ~600.0K

Trend: Stable →

Physical Characteristics

Attribute	Оклендский крохаль	common bottlenose dolphin
Diet	—	Carnivore
Average Lifespan	—	45 years
Average Length	—	3.0 m
Average Weight	—	300.0 kg

Habitat & Geographic Range

Оклендский крохаль

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found in Norway.

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).

Оклендский крохаль

The Auckland Islands Merganser (Mergus australis) is a species in the genus Mergus. It is currently classified as Extinct on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

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.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway