Chungan Sucker Frog vs common hydra

Amolops chunganensis compared with Hydra vulgaris

Key Differences

• Chungan Sucker Frog is Least Concern while common hydra is Not Evaluated.

Taxonomic Classification

Rank	Chungan Sucker Frog	common hydra
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Cnidaria (Cnidarians)
Class	Amphibia (Amphibians)	Hydrozoa (Hydrozoa)
Order	Anura (Frogs & Toads)	Anthoathecata (Anthoathecata)
Family	Ranidae	Hydridae
Genus	Amolops	Hydra
Species	Amolops chunganensis	Hydra vulgaris

Evolutionary Relationship

Chungan Sucker Frog and common hydra share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Chungan Sucker Frog

LC — Least Concern

common hydra

NE — Not Evaluated

Physical Characteristics

Attribute	Chungan Sucker Frog	common hydra
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Chungan Sucker Frog

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

common hydra

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

Chungan Sucker Frog

The Chungan Sucker Frog (Amolops chunganensis) is a Least Concern torrent frog in the family Ranidae, endemic to central China, particularly associated with the mountains of Chongqing (formerly Chungan County, from which the species name derives) and surrounding areas. The genus Amolops, commonly known as torrent frogs or cascade frogs, is adapted for life in and around fast-flowing mountain streams, with expanded toe pads and sucker-like discs that allow clinging to wet, smooth rock surfaces in high-velocity water. Breeding occurs in stream environments, where males call from boulders at the stream edge and larvae develop in oxygenated torrent pools with specialized mouthparts for adhering to rock substrates. A. chunganensis inhabits subtropical and montane forests at elevations ranging from low to mid altitudes in Sichuan and Chongqing. The IUCN assesses this species as Least Concern, reflecting a relatively wide distribution within suitable stream habitats across central China. However, it faces ongoing pressure from water quality degradation, dam construction and stream modification, deforestation, and pollution from agricultural and urban runoff. Amolops frogs are sensitive to siltation and chemical contamination of breeding streams.

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.