來珊鴨 vs Olive-gray Thomasomys

Anas laysanensis compared with Thomasomys cinereus

Key Differences

• 來珊鴨 is Critically Endangered while Olive-gray Thomasomys is Least Concern.

Taxonomic Classification

Rank	來珊鴨	Olive-gray Thomasomys
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	Aves (鳥綱)	Mammalia (哺乳動物)
Order	Anseriformes (雁形目)	Rodentia (啮齿目)
Family	Anatidae	Cricetidae
Genus	Anas	Thomasomys
Species	Anas laysanensis	Thomasomys cinereus

Evolutionary Relationship

來珊鴨 and Olive-gray Thomasomys share a common ancestor at the Phylum level: Chordata. (脊索动物门)

Conservation Status

來珊鴨

CR — Critically Endangered

Olive-gray Thomasomys

LC — Least Concern

Physical Characteristics

Attribute	來珊鴨	Olive-gray Thomasomys
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

來珊鴨

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Belgium, France, Netherlands, Norway, and United Kingdom. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Olive-gray Thomasomys

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador.

來珊鴨

莱桑鸭（Anas laysanensis）被IUCN红色名录列为极危（CR）物种。由于种群数量严重下降和栖息地丧失，该物种在野外灭绝的风险极高。