European otter vs Green String Lettuce

Lutra lutra compared with Ulva linza

Key Differences

• European otter is Vulnerable while Green String Lettuce is Least Concern.

Taxonomic Classification

Rank	European otter	Green String Lettuce
Kingdom	Animalia (สัตว์)	Plantae (พืช)
Phylum	Chordata (สัตว์มีแกนสันหลัง)	Chlorophyta (Chlorophyta)
Class	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)	Ulvophyceae (Ulvophyceae)
Order	Carnivora (สัตว์กินเนื้อ)	Ulvales (Ulvales)
Family	Mustelidae (Weasels & Otters)	Ulvaceae
Genus	Lutra (Otters)	Ulva
Species	Lutra lutra	Ulva linza

Conservation Status

European otter

VU — Vulnerable

Trend: Stable →

Green String Lettuce

LC — Least Concern

Physical Characteristics

Attribute	European otter	Green String Lettuce
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.

Green String Lettuce

Habitat

Native to Asia and Europe and South America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Brazil).

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.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden