Axehead Orange vs European otter

Acada biseriatus compared with Lutra lutra

Key Differences

Axehead Orange is Least Concern while European otter is Vulnerable.

Taxonomic Classification

Rank	Axehead Orange	European otter
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Lepidoptera (Butterflies & Moths)	Carnivora (Carnivorans)
Family	Hesperiidae	Mustelidae (Weasels & Otters)
Genus	Acada	Lutra (Otters)
Species	Acada biseriatus	Lutra lutra

Evolutionary Relationship

Axehead Orange and European otter share a common ancestor at the Kingdom level: Animalia. (Animals)

View Kingdom: Animalia

Conservation Status

Axehead Orange

LC — Least Concern

European otter

VU — Vulnerable

Trend: Stable →

Physical Characteristics

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

Habitat & Geographic Range

Axehead Orange

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

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.

Axehead Orange

The Axehead Orange (Acada biseriatus) is a species in the genus Acada. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

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.