Giant Otter vs Great Thick-knee

Pteronura brasiliensis compared with Esacus recurvirostris

Key Differences

• Giant Otter is Endangered while Great Thick-knee is Near Threatened.

Taxonomic Classification

Rank	Giant Otter	Great Thick-knee
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Carnivora (Carnivorans)	Charadriiformes (Charadriiformes)
Family	Mustelidae (Weasels & Otters)	Burhinidae
Genus	Pteronura	Esacus
Species	Pteronura brasiliensis	Esacus recurvirostris

Evolutionary Relationship

Giant Otter and Great Thick-knee share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Giant Otter

EN — Endangered

Great Thick-knee

NT — Near Threatened

Physical Characteristics

Attribute	Giant Otter	Great Thick-knee
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Giant Otter

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Great Thick-knee

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

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