brittlestar vs European otter

Amphiura chiajei compared with Lutra lutra

Key Differences

brittlestar is Least Concern while European otter is Vulnerable.

Taxonomic Classification

Rank	brittlestar	European otter
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum	Echinodermata (เอไคโนเดอร์มาตา)	Chordata (สัตว์มีแกนสันหลัง)
Class	Ophiuroidea (ดาวเปราะ)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order	Amphilepidida (Amphilepidida)	Carnivora (สัตว์กินเนื้อ)
Family	Amphiuridae	Mustelidae (Weasels & Otters)
Genus	Amphiura	Lutra (Otters)
Species	Amphiura chiajei	Lutra lutra

Evolutionary Relationship

brittlestar and European otter share a common ancestor at the Kingdom level: Animalia. (สัตว์)

ดู: Kingdom: Animalia

Conservation Status

brittlestar

LC — Least Concern

European otter

VU — Vulnerable

Trend: Stable →

Physical Characteristics

Attribute	brittlestar	European otter
Diet	—	Carnivore
Average Lifespan	—	10 years
Average Length	—	1.0 m
Average Weight	—	10.0 kg

Habitat & Geographic Range

brittlestar

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, Portugal, and Sweden.

European otter

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

Found across Europe (6 countries). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

brittlestar

The Brittlestar (Amphiura chiajei) 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.

European otter

Sleek semi-aquatic mustelid found along clean rivers, streams, and coastlines across Europe and Asia. European otters can reach 1.3 meters in length and are highly skilled fish hunters, using sensitive whiskers to detect prey movements. Requiring unpolluted water with abundant fish, they are an indicator species for freshwater ecosystem health. Once nearly extinct in Western Europe from hunting and pollution, populations have recovered significantly following water quality improvements.