Bigeye thresher vs Four-toed Hedgehog

Alopias pelagicus compared with Atelerix albiventris

Key Differences

• Bigeye thresher is Endangered while Four-toed Hedgehog is Least Concern.

Taxonomic Classification

Rank	Bigeye thresher	Four-toed Hedgehog
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Mammalia (Mammals)
Order	Lamniformes (Mackerel Sharks)	Erinaceomorpha (Erinaceomorpha)
Family	Alopiidae	Erinaceidae
Genus	Alopias	Atelerix
Species	Alopias pelagicus	Atelerix albiventris

Evolutionary Relationship

Bigeye thresher and Four-toed Hedgehog share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Bigeye thresher

EN — Endangered

Four-toed Hedgehog

LC — Least Concern

Physical Characteristics

Attribute	Bigeye thresher	Four-toed Hedgehog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bigeye thresher

Habitat

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

Range

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

Four-toed Hedgehog

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Ecuador and Spain.

Bigeye thresher

The Bigeye thresher (Alopias pelagicus) is a species in the genus Alopias. It is currently classified as Endangered on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.