Blue-Spotted Salamander vs European otter

Ambystoma laterale compared with Lutra lutra

Key Differences

• Blue-Spotted Salamander is Least Concern while European otter is Vulnerable.

Taxonomic Classification

Rank	Blue-Spotted Salamander	European otter
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Amphibia (Amphibians)	Mammalia (Mammals)
Order	Caudata (Caudata)	Carnivora (Carnivorans)
Family	Ambystomatidae	Mustelidae (Weasels & Otters)
Genus	Ambystoma	Lutra (Otters)
Species	Ambystoma laterale	Lutra lutra

Evolutionary Relationship

Blue-Spotted Salamander and European otter share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Blue-Spotted Salamander

LC — Least Concern

European otter

VU — Vulnerable

Trend: Stable →

Physical Characteristics

Attribute	Blue-Spotted Salamander	European otter
Diet	—	Carnivore
Average Lifespan	—	10 years
Average Length	—	1.0 m
Average Weight	—	10.0 kg

Habitat & Geographic Range

Blue-Spotted Salamander

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

Found in United States.

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.

Blue-Spotted Salamander

The Blue-Spotted Salamander (Ambystoma laterale) is a species in the genus Ambystoma. It is currently classified as Least Concern on the IUCN Red List. Typically found in freshwater habitats, moist forests, and wetlands.

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.