common hydra vs Long-eared Hedgehog

Hydra vulgaris compared with Hemiechinus auritus

Key Differences

• common hydra is Not Evaluated while Long-eared Hedgehog is Least Concern.

Taxonomic Classification

Rank	common hydra	Long-eared Hedgehog
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum	Cnidaria (Sứa lông châm)	Chordata (động vật có dây sống)
Class	Hydrozoa (Hydrozoa)	Mammalia (lớp Thú)
Order	Anthoathecata (Anthoathecata)	Erinaceomorpha (Erinaceomorpha)
Family	Hydridae	Erinaceidae
Genus	Hydra	Hemiechinus
Species	Hydra vulgaris	Hemiechinus auritus

Evolutionary Relationship

common hydra and Long-eared Hedgehog share a common ancestor at the Kingdom level: Animalia. (động vật)

Conservation Status

common hydra

NE — Not Evaluated

Long-eared Hedgehog

LC — Least Concern

Physical Characteristics

Attribute	common hydra	Long-eared Hedgehog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

common hydra

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

Long-eared Hedgehog

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Cyprus, Spain, and Ukraine.

common hydra

<em>Hydra vulgaris</em>, commonly known as the common hydra, is a small freshwater cnidarian in the family Hydridae. Its conservation status has not been formally evaluated by the IUCN. The species is recorded from Denmark, Norway, and Sweden, with its native range understood to encompass Europe broadly. It typically inhabits slow-moving or still freshwater bodies such as ponds, lakes, and streams, where it attaches to aquatic vegetation or submerged substrates. The common hydra is notable for its remarkable regenerative capabilities and has been the subject of substantial biological research. Diet information for this species is not available in current records. Biological traits of this species remain poorly documented in the scientific literature.