brittlestar vs Polynesian rat

Amphiura filiformis compared with Rattus exulans

Taxonomic Classification

Rank	brittlestar	Polynesian rat
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Echinodermata (棘皮动物门)	Chordata (脊索动物门)
Class	Ophiuroidea (蛇尾纲)	Mammalia (哺乳動物)
Order	Amphilepidida (阳遂足目)	Rodentia (啮齿目)
Family	Amphiuridae	Muridae (Mice & Rats)
Genus	Amphiura	Rattus
Species	Amphiura filiformis	Rattus exulans

Evolutionary Relationship

brittlestar and Polynesian rat share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

brittlestar

LC — Least Concern

Polynesian rat

LC — Least Concern

Physical Characteristics

Attribute	brittlestar	Polynesian rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

brittlestar

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

Polynesian rat

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical coniferous forests, among 4 distinct biome types spanning the Australasia and Indomalayan realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (6 countries), Europe (United Kingdom), North America (United States), Oceania and the Pacific (11 countries), and South America (Chile).

brittlestar

The Brittlestar (Amphiura filiformis) is a species in the genus Amphiura. It is currently classified as Least Concern on the IUCN Red List. Native to Europe, inhabiting ecosystems characteristic of the region.