common bottlenose dolphin vs Papuan epaulette shark

Tursiops truncatus compared with Hemiscyllium hallstromi

Key Differences

• common bottlenose dolphin is Least Concern while Papuan epaulette shark is Vulnerable.

Taxonomic Classification

Rank	common bottlenose dolphin	Papuan epaulette shark
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)	Elasmobranchii
Order	Cetacea (Whales & Dolphins)	Orectolobiformes (อันดับปลาฉลามกบ)
Family	Delphinidae (Oceanic Dolphins)	Hemiscylliidae
Genus	Tursiops (Bottlenose Dolphins)	Hemiscyllium
Species	Tursiops truncatus	Hemiscyllium hallstromi

Evolutionary Relationship

common bottlenose dolphin and Papuan epaulette shark share a common ancestor at the Phylum level: Chordata. (สัตว์มีแกนสันหลัง)

Conservation Status

common bottlenose dolphin

LC — Least Concern

Population: ~600.0K

Trend: Stable →

Papuan epaulette shark

VU — Vulnerable

Physical Characteristics

Attribute	common bottlenose dolphin	Papuan epaulette shark
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).

Papuan epaulette shark

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.