European otter vs Indo-Pacific Bottlenose Dolphin

Lutra lutra compared with Tursiops aduncus

Key Differences

• European otter is Vulnerable while Indo-Pacific Bottlenose Dolphin is Near Threatened.

Taxonomic Classification

Rank	European otter	Indo-Pacific Bottlenose Dolphin
Kingdom same	Animalia (حيوانات)	Animalia (حيوانات)
Phylum same	Chordata (حبليات)	Chordata (حبليات)
Class same	Mammalia (ثدييات)	Mammalia (ثدييات)
Order	Carnivora (لواحم)	Cetacea (Whales & Dolphins)
Family	Mustelidae (Weasels & Otters)	Delphinidae (Oceanic Dolphins)
Genus	Lutra (Otters)	Tursiops (Bottlenose Dolphins)
Species	Lutra lutra	Tursiops aduncus

Evolutionary Relationship

European otter and Indo-Pacific Bottlenose Dolphin share a common ancestor at the Class level: Mammalia. (ثدييات)

Conservation Status

European otter

VU — Vulnerable

Trend: Stable →

Indo-Pacific Bottlenose Dolphin

NT — Near Threatened

Physical Characteristics

Attribute	European otter	Indo-Pacific Bottlenose Dolphin
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.

Indo-Pacific Bottlenose Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Taiwan. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.