European otter vs tiny risso snail

Lutra lutra compared with Rissoa parva

Key Differences

European otter is Vulnerable while tiny risso snail is Least Concern.

Taxonomic Classification

Rank	European otter	tiny risso snail
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Chordata (脊索动物门)	Mollusca (软体动物门)
Class	Mammalia (哺乳動物)	Gastropoda (腹足纲)
Order	Carnivora (食肉目)	Littorinimorpha (滨螺形目)
Family	Mustelidae (Weasels & Otters)	Rissoidae
Genus	Lutra (Otters)	Rissoa
Species	Lutra lutra	Rissoa parva

Evolutionary Relationship

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

查看 Kingdom: Animalia

Conservation Status

European otter

VU — Vulnerable

Trend: Stable →

tiny risso snail

LC — Least Concern

Physical Characteristics

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

Habitat & Geographic Range

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.

tiny risso snail

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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。