common bottlenose dolphin vs Yellow-bellied Seedeater

Tursiops truncatus compared with Sporophila nigricollis

Taxonomic Classification

Rank	common bottlenose dolphin	Yellow-bellied Seedeater
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Cetacea (Whales & Dolphins)	Passeriformes (Songbirds)
Family	Delphinidae (Oceanic Dolphins)	Thraupidae
Genus	Tursiops (Bottlenose Dolphins)	Sporophila
Species	Tursiops truncatus	Sporophila nigricollis

Evolutionary Relationship

common bottlenose dolphin and Yellow-bellied Seedeater share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

common bottlenose dolphin

LC — Least Concern

Population: ~600.0K

Trend: Stable →

Yellow-bellied Seedeater

LC — Least Concern

Physical Characteristics

Attribute	common bottlenose dolphin	Yellow-bellied Seedeater
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).

Yellow-bellied Seedeater

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

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.

Yellow-bellied Seedeater

A small, distinctive seedeater with yellow underparts and a conspicuous black bib in males, yellow-bellied seedeaters inhabit weedy fields, forest edges, and grasslands from Costa Rica through South America to Argentina. Males have black upper parts with chestnut flanks contrasting with yellow belly. They form large flocks on grass seeds and agricultural weeds. Popular as cage birds in South America for the males' attractive plumage and melodious song. Listed as Least Concern with widespread and stable populations.

Shared Countries

Both species can be found in 4 countries:

🇨🇴 Colombia 🇪🇨 Ecuador 🇳🇴 Norway 🇻🇪 Venezuela