Big eye thresher shark vs Firecrest

Alopias superciliosus compared with Regulus ignicapilla

Key Differences

• Big eye thresher shark is Vulnerable while Firecrest is Least Concern.

Taxonomic Classification

Rank	Big eye thresher shark	Firecrest
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Aves (Birds)
Order	Lamniformes (Mackerel Sharks)	Passeriformes (Songbirds)
Family	Alopiidae	Regulidae
Genus	Alopias	Regulus
Species	Alopias superciliosus	Regulus ignicapilla

Evolutionary Relationship

Big eye thresher shark and Firecrest share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Big eye thresher shark

VU — Vulnerable

Firecrest

LC — Least Concern

Physical Characteristics

Attribute	Big eye thresher shark	Firecrest
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.

Firecrest

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, Sweden, and Ukraine.

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.

Firecrest

Firecrest (Regulus ignicapilla) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.