brittlestar vs Pool Frog

Amphiura filiformis compared with Pelophylax lessonae

Key Differences

• brittlestar is Least Concern while Pool Frog is Critically Endangered.

Taxonomic Classification

Rank	brittlestar	Pool Frog
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Echinodermata (棘皮動物)	Chordata (脊索動物)
Class	Ophiuroidea (クモヒトデ)	Amphibia (両生類)
Order	Amphilepidida (Amphilepidida)	Anura (カエル)
Family	Amphiuridae	Ranidae
Genus	Amphiura	Pelophylax
Species	Amphiura filiformis	Pelophylax lessonae

Evolutionary Relationship

brittlestar and Pool Frog share a common ancestor at the Kingdom level: Animalia. (動物)

Conservation Status

brittlestar

LC — Least Concern

Pool Frog

CR — Critically Endangered

Physical Characteristics

Attribute	brittlestar	Pool Frog
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.

Pool Frog

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (8 countries). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Pool Frog

Pool Frog（Pelophylax lessonae）はIUCNレッドリストで絶滅危惧IA類（CR）に分類される。深刻な個体数の減少と生息地の損失により、野生での絶滅の危険性が極めて高い状態にある。

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden