Blunt-headed Salamander vs common hydra

Ambystoma amblycephalum compared with Hydra vulgaris

Key Differences

• Blunt-headed Salamander is Critically Endangered while common hydra is Not Evaluated.

Taxonomic Classification

Rank	Blunt-headed Salamander	common hydra
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Cnidaria (Cnidarians)
Class	Amphibia (Amphibians)	Hydrozoa (Hydrozoa)
Order	Caudata (Caudata)	Anthoathecata (Anthoathecata)
Family	Ambystomatidae	Hydridae
Genus	Ambystoma	Hydra
Species	Ambystoma amblycephalum	Hydra vulgaris

Evolutionary Relationship

Blunt-headed Salamander and common hydra share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Blunt-headed Salamander

CR — Critically Endangered

common hydra

NE — Not Evaluated

Physical Characteristics

Attribute	Blunt-headed Salamander	common hydra
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blunt-headed Salamander

Habitat

Found across multiple habitat types including tropical and subtropical coniferous forests, tropical and subtropical grasslands and savannas, and Mediterranean forests and woodlands, among 6 distinct biome types spanning the Nearctic and Neotropic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Mexico. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

common hydra

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

Blunt-headed Salamander

The Blunt-headed Salamander (Ambystoma amblycephalum) is a species in the genus Ambystoma. It is currently classified as Critically Endangered on the IUCN Red List. Found across multiple habitat types including tropical and subtropical coniferous forests, tropical and subtropical grasslands and savannas, and Mediterranean forests and woodlands, among 6 distinct biome types spanning the Nearctic and Neo

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.