European otter vs Upper Orinoco Treefrog

Lutra lutra compared with Boana wavrini

Key Differences

• European otter is Vulnerable while Upper Orinoco Treefrog is Least Concern.

Taxonomic Classification

Rank	European otter	Upper Orinoco Treefrog
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Amphibia (Amphibians)
Order	Carnivora (Carnivorans)	Anura (Frogs & Toads)
Family	Mustelidae (Weasels & Otters)	Hylidae
Genus	Lutra (Otters)	Boana
Species	Lutra lutra	Boana wavrini

Evolutionary Relationship

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

Conservation Status

European otter

VU — Vulnerable

Trend: Stable →

Upper Orinoco Treefrog

LC — Least Concern

Physical Characteristics

Attribute	European otter	Upper Orinoco Treefrog
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.

Upper Orinoco Treefrog

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

Found in Venezuela.

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.