Abert's Squirrel vs European otter

Sciurus aberti compared with Lutra lutra

Key Differences

• Abert's Squirrel is Least Concern while European otter is Vulnerable.

Taxonomic Classification

Rank	Abert's Squirrel	European otter
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class same	Mammalia (哺乳動物)	Mammalia (哺乳動物)
Order	Rodentia (啮齿目)	Carnivora (食肉目)
Family	Sciuridae (Squirrels)	Mustelidae (Weasels & Otters)
Genus	Sciurus (Tree Squirrels)	Lutra (Otters)
Species	Sciurus aberti	Lutra lutra

Evolutionary Relationship

Abert's Squirrel and European otter share a common ancestor at the Class level: Mammalia. (哺乳動物)

Conservation Status

Abert's Squirrel

LC — Least Concern

European otter

VU — Vulnerable

Trend: Stable →

Physical Characteristics

Attribute	Abert's Squirrel	European otter
Diet	—	Carnivore
Average Lifespan	—	10 years
Average Length	—	1.0 m
Average Weight	—	10.0 kg

Habitat & Geographic Range

Abert's Squirrel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.

Abert's Squirrel

The Abert's Squirrel (Sciurus aberti) is a species in the genus Sciurus. It is currently classified as Least Concern on the IUCN Red List. It typically inhabits diverse terrestrial and aquatic ecosystems.

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。