Amazonian Marsh Rat vs Mourning Cloak

Holochilus sciureus compared with Nymphalis antiopa

Key Differences

• Amazonian Marsh Rat is Least Concern while Mourning Cloak is Critically Endangered.

Taxonomic Classification

Rank	Amazonian Marsh Rat	Mourning Cloak
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Chordata (脊索動物)	Arthropoda (節足動物)
Class	Mammalia (哺乳類)	Insecta (昆虫)
Order	Rodentia (ネズミ目)	Lepidoptera (チョウ目)
Family	Cricetidae	Nymphalidae (Brush-footed Butterflies)
Genus	Holochilus	Nymphalis
Species	Holochilus sciureus	Nymphalis antiopa

Evolutionary Relationship

Amazonian Marsh Rat and Mourning Cloak share a common ancestor at the Kingdom level: Animalia. (動物)

Conservation Status

Amazonian Marsh Rat

LC — Least Concern

Mourning Cloak

CR — Critically Endangered

Physical Characteristics

Attribute	Amazonian Marsh Rat	Mourning Cloak
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.

Mourning Cloak

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 9 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (39 countries) and North America (Canada, United States). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Mourning Cloak

モーニング・クローク（Nymphalis antiopa）は IUCN レッドリストで絶滅危惧 I 類（CR）に分類されています。深刻な個体数の減少と生息地の喪失により、野生での絶滅リスクが極めて高い状況にあります。