common bottlenose dolphin vs Ocean Sunfish

Tursiops truncatus compared with Mola mola

Key Differences

• common bottlenose dolphin is Least Concern while Ocean Sunfish is Vulnerable.
• common bottlenose dolphin is carnivore while Ocean Sunfish is omnivore.
• Ocean Sunfish is 3.3x heavier than common bottlenose dolphin.
• common bottlenose dolphin lives longer (45 years vs 10 years).

Taxonomic Classification

Rank	common bottlenose dolphin	Ocean Sunfish
Kingdom same	Animalia (प्राणी)	Animalia (प्राणी)
Phylum same	Chordata (रज्जुकी)	Chordata (रज्जुकी)
Class	Mammalia (स्तनधारी)	Actinopterygii (Ray-finned Fish)
Order	Cetacea (Whales & Dolphins)	Perciformes (पर्सिफ़ोर्मेज़)
Family	Delphinidae (Oceanic Dolphins)	Scombridae (Tunas & Mackerels)
Genus	Tursiops (Bottlenose Dolphins)	Thunnus (Tunas)
Species	Tursiops truncatus	Mola mola

Evolutionary Relationship

common bottlenose dolphin and Ocean Sunfish share a common ancestor at the Phylum level: Chordata. (रज्जुकी)

Conservation Status

common bottlenose dolphin

LC — Least Concern

Population: ~600.0K

Trend: Stable →

Ocean Sunfish

VU — Vulnerable

Trend: Decreasing ↓

Physical Characteristics

Attribute	common bottlenose dolphin	Ocean Sunfish
Diet	Carnivore	Omnivore
Average Lifespan	45 years	10 years
Average Length	3.0 m	2.7 m
Average Weight	300.0 kg	1.0 t

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).

Ocean Sunfish

Habitat

Typically found in a wide range of habitat types.

Range

Distributed across Australia, Japan, South Africa, and United States. 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.

Ocean Sunfish

The ocean sunfish is the heaviest known bony fish in the world, weighing up to 2,300 kg.