Dwarf round ray vs European hamster

Urotrygon nana compared with Cricetus cricetus

Key Differences

• Dwarf round ray is Near Threatened while European hamster is Critically Endangered.

Taxonomic Classification

Rank	Dwarf round ray	European hamster
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Myliobatiformes (Myliobatiformes)	Rodentia (Rodents)
Family	Urotrygonidae	Cricetidae
Genus	Urotrygon	Cricetus
Species	Urotrygon nana	Cricetus cricetus

Evolutionary Relationship

Dwarf round ray and European hamster share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Dwarf round ray

NT — Near Threatened

European hamster

CR — Critically Endangered

Physical Characteristics

Attribute	Dwarf round ray	European hamster
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Dwarf round ray

European hamster

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.