Oriente Cave Rat vs Ring-necked Duck

Boromys offella compared with Aythya collaris

Key Differences

• Oriente Cave Rat is Extinct while Ring-necked Duck is Least Concern.

Taxonomic Classification

Rank	Oriente Cave Rat	Ring-necked Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Rodentia (Rodents)	Anseriformes (Anseriformes)
Family	Echimyidae	Anatidae
Genus	Boromys	Aythya
Species	Boromys offella	Aythya collaris

Evolutionary Relationship

Oriente Cave Rat and Ring-necked Duck share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Oriente Cave Rat

EX — Extinct

Ring-necked Duck

LC — Least Concern

Physical Characteristics

Attribute	Oriente Cave Rat	Ring-necked Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Oriente Cave Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Ring-necked Duck

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela).

Ring-necked Duck

Ring-necked Duck (Aythya collaris) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.