common hydra vs Golden Eagle

Hydra vulgaris compared with Aquila chrysaetos

Key Differences

• common hydra is Not Evaluated while Golden Eagle is Near Threatened.

Taxonomic Classification

Rank	common hydra	Golden Eagle
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Cnidaria (Cnidarians)	Chordata (Chordates)
Class	Hydrozoa (Hydrozoa)	Aves (Birds)
Order	Anthoathecata (Anthoathecata)	Accipitriformes (Hawks & Eagles)
Family	Hydridae	Accipitridae (Hawks & Eagles)
Genus	Hydra	Aquila (True Eagles)
Species	Hydra vulgaris	Aquila chrysaetos

Evolutionary Relationship

common hydra and Golden Eagle share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

common hydra

NE — Not Evaluated

Golden Eagle

NT — Near Threatened

Population: ~300.0K

Trend: Stable →

Physical Characteristics

Attribute	common hydra	Golden Eagle
Diet	—	Carnivore
Average Lifespan	—	30 years
Average Length	—	85 cm
Average Weight	—	5.0 kg

Habitat & Geographic Range

common hydra

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

Golden Eagle

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), and North America (United States). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Golden Eagle

Among the most powerful and widely distributed raptors in the world, golden eagles have wingspans reaching 2.2 meters and inhabit mountainous terrain across the Northern Hemisphere. Supreme aerial hunters, they use soaring flight and steep dives at speeds over 200 km/h to capture rabbits, hares, ground squirrels, and occasionally young deer and foxes. In many cultures they have been central to falconry traditions spanning millennia.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden