arrowroot vs European otter

Thalia geniculata compared with Lutra lutra

Key Differences

arrowroot is Least Concern while European otter is Vulnerable.

Taxonomic Classification

Rank	arrowroot	European otter
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Thaliacea (Thaliacea)	Mammalia (Mammals)
Order	Salpida (Salpida)	Carnivora (Carnivorans)
Family	Salpidae	Mustelidae (Weasels & Otters)
Genus	Thalia	Lutra (Otters)
Species	Thalia geniculata	Lutra lutra

Evolutionary Relationship

arrowroot and European otter share a common ancestor at the Phylum level: Chordata. (Chordates)

View Phylum: Chordata

Conservation Status

arrowroot

LC — Least Concern

European otter

VU — Vulnerable

Trend: Stable →

Physical Characteristics

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

Habitat & Geographic Range

arrowroot

Habitat

Native to Africa and Asia and North America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Africa (Guinea), Asia (India, Taiwan), North America (Cuba), Oceania and the Pacific (Australia), and South America (Brazil, Colombia).

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.

arrowroot

The Arrowroot, Thalia geniculata, is a species. It is currently assessed as least concern on the IUCN Red List. Native to Africa and Asia and North America, inhabiting ecosystems characteristic of the region.

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.