Broadnose cat shark vs common bottlenose dolphin

Apristurus investigatoris compared with Tursiops truncatus

Taxonomic Classification

Rank	Broadnose cat shark	common bottlenose dolphin
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Mammalia (Mammals)
Order	Carcharhiniformes (Ground Sharks)	Cetacea (Whales & Dolphins)
Family	Scyliorhinidae	Delphinidae (Oceanic Dolphins)
Genus	Apristurus	Tursiops (Bottlenose Dolphins)
Species	Apristurus investigatoris	Tursiops truncatus

Evolutionary Relationship

Broadnose cat shark and common bottlenose dolphin share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Broadnose cat shark

LC — Least Concern

common bottlenose dolphin

LC — Least Concern

Population: ~600.0K

Trend: Stable →

Physical Characteristics

Attribute	Broadnose cat shark	common bottlenose dolphin
Diet	—	Carnivore
Average Lifespan	—	45 years
Average Length	—	3.0 m
Average Weight	—	300.0 kg

Habitat & Geographic Range

Broadnose cat shark

Habitat

Typically found in marine environments from coastal waters to deep ocean.

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).

Broadnose cat shark

The Broadnose Cat Shark (Apristurus investigatoris) is a species in the genus Apristurus. It is currently classified as Least Concern on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.

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.