Brown Rat vs hydroid

Rattus norvegicus compared with Obelia longissima

Key Differences

• Brown Rat is Least Concern while hydroid is Not Evaluated.

Taxonomic Classification

Rank	Brown Rat	hydroid
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Chordata (脊索動物)	Cnidaria (刺胞動物)
Class	Mammalia (哺乳類)	Hydrozoa (ヒドロ虫綱)
Order	Rodentia (ネズミ目)	Leptothecata (軟クラゲ目)
Family	Muridae (Mice & Rats)	Campanulariidae
Genus	Rattus	Obelia
Species	Rattus norvegicus	Obelia longissima

Evolutionary Relationship

Brown Rat and hydroid share a common ancestor at the Kingdom level: Animalia. (動物)

Conservation Status

Brown Rat

LC — Least Concern

hydroid

NE — Not Evaluated

Physical Characteristics

Attribute	Brown Rat	hydroid
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown Rat

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 10 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (11 countries), Asia (15 countries), Europe (41 countries), North America (16 countries), Oceania and the Pacific (10 countries), and South America (10 countries).

hydroid

Habitat

Native to Europe and North America and Oceania, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Europe (4 countries), North America (United States), Oceania and the Pacific (Australia, New Zealand), and South America (Argentina).

Brown Rat

ドブネズミ（Rattus norvegicus）はIUCNレッドリストで軽度懸念（LC）に分類されています。分布域全体に広く生息し個体数は安定しており、緊急の保護上の懸念はありません。

Shared Countries

Both species can be found in 8 countries:

🇦🇷 Argentina 🇦🇺 Australia 🇧🇪 Belgium 🇩🇰 Denmark 🇳🇿 New Zealand 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States