Amazonian Marsh Rat vs Ruff

Holochilus sciureus compared with Calidris pugnax

Taxonomic Classification

Rank	Amazonian Marsh Rat	Ruff
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class	Mammalia (哺乳動物)	Aves (鳥綱)
Order	Rodentia (啮齿目)	Charadriiformes (鸻形目)
Family	Cricetidae	Scolopacidae
Genus	Holochilus	Calidris
Species	Holochilus sciureus	Calidris pugnax

Evolutionary Relationship

Amazonian Marsh Rat and Ruff share a common ancestor at the Phylum level: Chordata. (脊索动物门)

Conservation Status

Amazonian Marsh Rat

LC — Least Concern

Ruff

LC — Least Concern

Physical Characteristics

Attribute	Amazonian Marsh Rat	Ruff
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amazonian Marsh Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela.

Ruff

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), North America (United States), and South America (Colombia, Venezuela).

Amazonian Marsh Rat

The Amazonian Marsh Rat (Holochilus sciureus) is a species in the genus Holochilus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Ruff

流苏鹬（Calidris pugnax）在IUCN红色名录中被列为无危（LC）。在其分布范围内广泛分布且数量丰富，种群稳定，无迫切保护忧虑。

Shared Countries

Both species can be found in 2 countries:

🇨🇴 Colombia 🇻🇪 Venezuela