Brook Floater vs hedgehog

Alasmidonta varicosa compared with Erinaceus europaeus

Key Differences

• Brook Floater is Vulnerable while hedgehog is Least Concern.

Taxonomic Classification

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

Evolutionary Relationship

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

Conservation Status

Brook Floater

VU — Vulnerable

hedgehog

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	hedgehog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

hedgehog

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Widely distributed across Asia (China, Japan), Europe (8 countries), and Oceania and the Pacific (New Zealand).

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.

hedgehog

hedgehog (Erinaceus europaeus) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.