Cá Nhàm đuôi dài vs European otter

Alopias pelagicus compared with Lutra lutra

Key Differences

• Cá Nhàm đuôi dài is Endangered while European otter is Vulnerable.

Taxonomic Classification

Rank	Cá Nhàm đuôi dài	European otter
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum same	Chordata (động vật có dây sống)	Chordata (động vật có dây sống)
Class	Chondrichthyes (Lớp Cá sụn)	Mammalia (lớp Thú)
Order	Lamniformes (Bộ Cá nhám thu)	Carnivora (bộ Ăn thịt)
Family	Alopiidae	Mustelidae (Weasels & Otters)
Genus	Alopias	Lutra (Otters)
Species	Alopias pelagicus	Lutra lutra

Evolutionary Relationship

Cá Nhàm đuôi dài and European otter share a common ancestor at the Phylum level: Chordata. (động vật có dây sống)

Conservation Status

Cá Nhàm đuôi dài

EN — Endangered

European otter

VU — Vulnerable

Trend: Stable →

Physical Characteristics

Attribute	Cá Nhàm đuôi dài	European otter
Diet	—	Carnivore
Average Lifespan	—	10 years
Average Length	—	1.0 m
Average Weight	—	10.0 kg

Habitat & Geographic Range

Cá Nhàm đuôi dài

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Range

Distributed across Colombia and Taiwan. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its 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.

Cá Nhàm đuôi dài

The Bigeye thresher (Alopias pelagicus) is a species in the genus Alopias. It is currently classified as Endangered on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.

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.