common bottlenose dolphin vs Red-crowned Crane

Tursiops truncatus compared with Grus japonensis

Key Differences

• common bottlenose dolphin is Least Concern while Red-crowned Crane is Vulnerable.
• common bottlenose dolphin is carnivore while Red-crowned Crane is omnivore.
• common bottlenose dolphin is 30.0x heavier than Red-crowned Crane.
• common bottlenose dolphin lives longer (45 years vs 40 years).

Taxonomic Classification

Rank	common bottlenose dolphin	Red-crowned Crane
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Cetacea (Whales & Dolphins)	Gruiformes (Gruiformes)
Family	Delphinidae (Oceanic Dolphins)	Gruidae
Genus	Tursiops (Bottlenose Dolphins)	Grus
Species	Tursiops truncatus	Grus japonensis

Evolutionary Relationship

common bottlenose dolphin and Red-crowned Crane share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

common bottlenose dolphin

LC — Least Concern

Population: ~600.0K

Trend: Stable →

Red-crowned Crane

VU — Vulnerable

Population: ~2.8K

Trend: Stable →

Physical Characteristics

Attribute	common bottlenose dolphin	Red-crowned Crane
Diet	Carnivore	Omnivore
Average Lifespan	45 years	40 years
Average Length	3.0 m	1.5 m
Average Weight	300.0 kg	10.0 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).

Red-crowned Crane

Habitat

Typically found in a wide range of habitat types.

Range

Found across Asia (Taiwan) and Europe (5 countries). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Red-crowned Crane

One of the rarest cranes in the world, red-crowned cranes stand 1.5 meters tall and are revered in East Asian cultures as symbols of longevity, fidelity, and good fortune. They inhabit wetlands and marshes of Russia, China, Korea, and Japan, performing elaborate and graceful courtship dances involving synchronized leaps, bowing, and calls. Endangered, with the wild population estimated at just 2,750 individuals, threatened by wetland drainage and habitat loss.

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇳🇴 Norway 🇹🇼 Taiwan