brittlestar vs European otter

Amphiura filiformis compared with Lutra lutra

Key Differences

brittlestar is Least Concern while European otter is Vulnerable.

Taxonomic Classification

Rank	brittlestar	European otter
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)	Carnivora (食肉目)
Family	Amphiuridae	Mustelidae (Weasels & Otters)
Genus	Amphiura	Lutra (Otters)
Species	Amphiura filiformis	Lutra lutra

Evolutionary Relationship

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

查看 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, 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 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.

European otter

欧洲水獭（Lutra lutra）是一种纤细的半水生鼬科动物，分布于欧洲和亚洲的清洁河流、溪流和海岸线。欧洲水獭体长可达1.3米，是技术娴熟的捕鱼者，利用敏感的胡须探测猎物的动向。它们需要鱼类丰富的清洁水域，是淡水生态系统健康状况的指示物种。曾因狩猎和污染在西欧几近灭绝，随着水质改善，种群数量已显著恢复。