Feldhamster vs Merriam’s Pocket Mouse

Cricetus cricetus compared with Perognathus merriami

Key Differences

• Feldhamster is Critically Endangered while Merriam’s Pocket Mouse is Least Concern.

Taxonomic Classification

Rank	Feldhamster	Merriam’s Pocket Mouse
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class same	Mammalia (Säugetiere)	Mammalia (Säugetiere)
Order same	Rodentia (Nagetiere)	Rodentia (Nagetiere)
Family	Cricetidae	Heteromyidae
Genus	Cricetus	Perognathus
Species	Cricetus cricetus	Perognathus merriami

Evolutionary Relationship

Feldhamster and Merriam’s Pocket Mouse share a common ancestor at the Order level: Rodentia. (Nagetiere)

Conservation Status

Feldhamster

CR — Critically Endangered

Merriam’s Pocket Mouse

LC — Least Concern

Physical Characteristics

Attribute	Feldhamster	Merriam’s Pocket Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Feldhamster

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 8 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Belgium, Denmark, Russia, and Ukraine. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.