common bottlenose dolphin vs marine otter

Tursiops truncatus compared with Lontra felina

Key Differences

• common bottlenose dolphin is Least Concern while marine otter is Endangered.

Taxonomic Classification

Rank	common bottlenose dolphin	marine otter
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum same	Chordata (động vật có dây sống)	Chordata (động vật có dây sống)
Class same	Mammalia (lớp Thú)	Mammalia (lớp Thú)
Order	Cetacea (Whales & Dolphins)	Carnivora (bộ Ăn thịt)
Family	Delphinidae (Oceanic Dolphins)	Mustelidae (Weasels & Otters)
Genus	Tursiops (Bottlenose Dolphins)	Lontra
Species	Tursiops truncatus	Lontra felina

Evolutionary Relationship

common bottlenose dolphin and marine otter share a common ancestor at the Class level: Mammalia. (lớp Thú)

Conservation Status

common bottlenose dolphin

LC — Least Concern

Population: ~600.0K

Trend: Stable →

marine otter

EN — Endangered

Physical Characteristics

Attribute	common bottlenose dolphin	marine otter
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).

marine otter

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.