European otter vs Javan Rusa

Lutra lutra compared with Rusa timorensis

Taxonomic Classification

Rank	European otter	Javan Rusa
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum same	Chordata (động vật có dây sống)	Chordata (động vật có dây sống)
Class same	Mammalia (lớp Thú)	Mammalia (lớp Thú)
Order	Carnivora (bộ Ăn thịt)	Artiodactyla (Bộ Guốc chẵn)
Family	Mustelidae (Weasels & Otters)	Cervidae (Deer)
Genus	Lutra (Otters)	Rusa
Species	Lutra lutra	Rusa timorensis

Evolutionary Relationship

European otter and Javan Rusa share a common ancestor at the Class level: Mammalia. (lớp Thú)

Xem Class: Mammalia

Conservation Status

European otter

VU — Vulnerable

Trend: Stable →

Javan Rusa

VU — Vulnerable

Physical Characteristics

Attribute	European otter	Javan Rusa
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.

Javan Rusa

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, tundra, and tropical and subtropical moist broadleaf forests spanning the Australasia and Afrotropic and Oceanian realms.

Range

Distributed across Mauritius, New Zealand, and Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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.