common bottlenose dolphin vs Американский красноголовый нырок

Tursiops truncatus compared with Aythya americana

Key Differences

• common bottlenose dolphin is Least Concern while Американский красноголовый нырок is Not Evaluated.

Taxonomic Classification

Rank	common bottlenose dolphin	Американский красноголовый нырок
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum same	Chordata (хордовые)	Chordata (хордовые)
Class	Mammalia (млекопитающие)	Aves (птицы)
Order	Cetacea (Whales & Dolphins)	Anseriformes (гусеобразные)
Family	Delphinidae (Oceanic Dolphins)	Anatidae
Genus	Tursiops (Bottlenose Dolphins)	Aythya
Species	Tursiops truncatus	Aythya americana

Evolutionary Relationship

common bottlenose dolphin and Американский красноголовый нырок share a common ancestor at the Phylum level: Chordata. (хордовые)

Conservation Status

common bottlenose dolphin

LC — Least Concern

Population: ~600.0K

Trend: Stable →

Американский красноголовый нырок

NE — Not Evaluated

Physical Characteristics

Attribute	common bottlenose dolphin	Американский красноголовый нырок
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).

Американский красноголовый нырок

Habitat

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

Range

Found across Europe (7 countries) and North America (United States).

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.

Американский красноголовый нырок

Redhead (Aythya americana) is classified as Not Evaluated (NE) on the IUCN Red List. Not yet evaluated against IUCN Red List criteria. Conservation status remains to be determined.

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇳🇴 Norway 🇸🇪 Sweden