Amur Hedgehog vs Bay-shark

Erinaceus amurensis compared with Carcharhinus obscurus

Key Differences

• Amur Hedgehog is Least Concern while Bay-shark is Endangered.

Taxonomic Classification

Rank	Amur Hedgehog	Bay-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	Erinaceus	Carcharhinus
Species	Erinaceus amurensis	Carcharhinus obscurus

Evolutionary Relationship

Amur Hedgehog and Bay-shark share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Amur Hedgehog

LC — Least Concern

Bay-shark

EN — Endangered

Physical Characteristics

Attribute	Amur Hedgehog	Bay-shark
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amur Hedgehog

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Japan.

Bay-shark

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate grasslands and steppes, and montane grasslands and shrublands, among 5 distinct biome types within the Neotropic biogeographic realm.

Range

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

Amur Hedgehog

The Amur Hedgehog (Erinaceus amurensis) is a species in the genus Erinaceus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Bay-shark

The Bay-shark (Carcharhinus obscurus) is a species in the genus Carcharhinus. It is currently classified as Endangered on the IUCN Red List. Found across multiple habitat types including temperate broadleaf and mixed forests, temperate grasslands and steppes, and montane grasslands and shrublands, among 5 distinct biome types within the Neotropic biogeographic realm.