Big eye thresher shark vs Burmeister’s Porpoise

Alopias superciliosus compared with Phocoena spinipinnis

Key Differences

• Big eye thresher shark is Vulnerable while Burmeister’s Porpoise is Near Threatened.

Taxonomic Classification

Rank	Big eye thresher shark	Burmeister’s Porpoise
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Mammalia (Mammals)
Order	Lamniformes (Mackerel Sharks)	Cetacea (Whales & Dolphins)
Family	Alopiidae	Phocoenidae
Genus	Alopias	Phocoena
Species	Alopias superciliosus	Phocoena spinipinnis

Evolutionary Relationship

Big eye thresher shark and Burmeister’s Porpoise share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Big eye thresher shark

VU — Vulnerable

Burmeister’s Porpoise

NT — Near Threatened

Physical Characteristics

Attribute	Big eye thresher shark	Burmeister’s Porpoise
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Big eye thresher shark

Habitat

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

Range

Distributed across Chile, Colombia, Portugal, Taiwan, and Venezuela. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Burmeister’s Porpoise

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Big eye thresher shark

The Big eye thresher shark (Alopias superciliosus) is a species in the genus Alopias. It is currently classified as Vulnerable on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.

Burmeister’s Porpoise

The Burmeister’s Porpoise (Phocoena spinipinnis) is a species in the genus Phocoena. It is currently classified as Near Threatened on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.