common hydra vs Lǎohǔ

Hydra vulgaris compared with Panthera tigris

Key Differences

• common hydra is Not Evaluated while Lǎohǔ is Endangered.

Taxonomic Classification

Rank	common hydra	Lǎohǔ
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Cnidaria (刺胞動物門)	Chordata (脊索动物门)
Class	Hydrozoa (水螅纲)	Mammalia (哺乳動物)
Order	Anthoathecata (花水母目)	Carnivora (食肉目)
Family	Hydridae	Felidae (Cats)
Genus	Hydra	Panthera (Big Cats)
Species	Hydra vulgaris	Panthera tigris

Evolutionary Relationship

common hydra and Lǎohǔ share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

common hydra

NE — Not Evaluated

Lǎohǔ

EN — Endangered

Population: ~4.5K

Trend: Increasing ↑

Physical Characteristics

Attribute	common hydra	Lǎohǔ
Diet	—	Carnivore
Average Lifespan	—	20 years
Average Length	—	3.0 m
Average Weight	—	220.0 kg

Habitat & Geographic Range

common hydra

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

Lǎohǔ

Habitat

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

Range

Distributed across Colombia and Ecuador. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Lǎohǔ

地球上最大的野生猫科动物，体重可超过300千克，栖息于从俄罗斯远东到东南亚的森林中。独居埋伏捕食者，具有独特的橙色和黑色条纹皮毛，在斑驳光线中提供伪装。由于偷猎和森林砍伐，野外种群减少至不足4,000只，被列为极危（CR）物种。