Giant Otter vs Plain-crowned Spinetail

Pteronura brasiliensis compared with Synallaxis gujanensis

Key Differences

• Giant Otter is Endangered while Plain-crowned Spinetail is Least Concern.

Taxonomic Classification

Rank	Giant Otter	Plain-crowned Spinetail
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Carnivora (Carnivorans)	Passeriformes (Songbirds)
Family	Mustelidae (Weasels & Otters)	Furnariidae
Genus	Pteronura	Synallaxis
Species	Pteronura brasiliensis	Synallaxis gujanensis

Evolutionary Relationship

Giant Otter and Plain-crowned Spinetail share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Giant Otter

EN — Endangered

Plain-crowned Spinetail

LC — Least Concern

Physical Characteristics

Attribute	Giant Otter	Plain-crowned Spinetail
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.

Plain-crowned Spinetail

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Shared Countries

Both species can be found in 2 countries:

🇨🇴 Colombia 🇻🇪 Venezuela