common bottlenose dolphin vs Obyknovennaja Poljovka

Tursiops truncatus compared with Microtus arvalis

Key Differences

• common bottlenose dolphin is Least Concern while Obyknovennaja Poljovka is Near Threatened.

Taxonomic Classification

Rank	common bottlenose dolphin	Obyknovennaja Poljovka
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum same	Chordata (хордовые)	Chordata (хордовые)
Class same	Mammalia (млекопитающие)	Mammalia (млекопитающие)
Order	Cetacea (Whales & Dolphins)	Rodentia (грызуны)
Family	Delphinidae (Oceanic Dolphins)	Cricetidae
Genus	Tursiops (Bottlenose Dolphins)	Microtus
Species	Tursiops truncatus	Microtus arvalis

Evolutionary Relationship

common bottlenose dolphin and Obyknovennaja Poljovka share a common ancestor at the Class level: Mammalia. (млекопитающие)

Conservation Status

common bottlenose dolphin

LC — Least Concern

Population: ~600.0K

Trend: Stable →

Obyknovennaja Poljovka

NT — Near Threatened

Physical Characteristics

Attribute	common bottlenose dolphin	Obyknovennaja Poljovka
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).

Obyknovennaja Poljovka

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found across Europe (6 countries). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Obyknovennaja Poljovka

common vole (Microtus arvalis) is classified as Near Threatened (NT) on the IUCN Red List. Close to qualifying as threatened, with populations that may become vulnerable without conservation action.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden