Four-toed Hedgehog vs milk shark

Atelerix albiventris compared with Rhizoprionodon acutus

Key Differences

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

Taxonomic Classification

Rank	Four-toed Hedgehog	milk 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	Carcharhinidae
Genus	Atelerix	Rhizoprionodon
Species	Atelerix albiventris	Rhizoprionodon acutus

Evolutionary Relationship

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

Conservation Status

Four-toed Hedgehog

LC — Least Concern

milk shark

VU — Vulnerable

Physical Characteristics

Attribute	Four-toed Hedgehog	milk 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.

milk shark

Habitat

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

Range

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