Amur Hedgehog vs Brook Floater

Erinaceus amurensis compared with Alasmidonta varicosa

Key Differences

• Amur Hedgehog is Least Concern while Brook Floater is Vulnerable.

Taxonomic Classification

Rank	Amur Hedgehog	Brook Floater
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Mammalia (Mammals)	Bivalvia (Bivalvia)
Order	Erinaceomorpha (Erinaceomorpha)	Unionida (Unionida)
Family	Erinaceidae	Unionidae
Genus	Erinaceus	Alasmidonta
Species	Erinaceus amurensis	Alasmidonta varicosa

Evolutionary Relationship

Amur Hedgehog and Brook Floater share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Amur Hedgehog

LC — Least Concern

Brook Floater

VU — Vulnerable

Physical Characteristics

Attribute	Amur Hedgehog	Brook Floater
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.

Brook Floater

Habitat

Native to North America, inhabiting ecosystems characteristic of the region.

Range

Found in United States. Currently classified as Vulnerable 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.

Brook Floater

The Brook Floater (Alasmidonta varicosa) is a species in the genus Alasmidonta. It is currently classified as Vulnerable on the IUCN Red List. Native to North America, inhabiting ecosystems characteristic of the region.