Four-toed Hedgehog vs Hooktooth shark

Atelerix albiventris compared with Hemigaleus microstoma

Key Differences

• Four-toed Hedgehog is Least Concern while Hooktooth shark is Vulnerable.

Taxonomic Classification

Rank	Four-toed Hedgehog	Hooktooth shark
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Chondrichthyes (Cartilaginous Fish)
Order	Erinaceomorpha (Erinaceomorpha)	Carcharhiniformes (Ground Sharks)
Family	Erinaceidae	Hemigaleidae
Genus	Atelerix	Hemigaleus
Species	Atelerix albiventris	Hemigaleus microstoma

Evolutionary Relationship

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

Conservation Status

Four-toed Hedgehog

LC — Least Concern

Hooktooth shark

VU — Vulnerable

Physical Characteristics

Attribute	Four-toed Hedgehog	Hooktooth shark
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Four-toed Hedgehog

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Ecuador and Spain.

Hooktooth shark

Habitat

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

Range

Found in Taiwan. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.