Fat Sand Rat vs Rock Foam

Psammomys obesus compared with Stereocaulon saxatile

Key Differences

• Fat Sand Rat is Least Concern while Rock Foam is Near Threatened.

Taxonomic Classification

Rank	Fat Sand Rat	Rock Foam
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Ascomycota (Sac Fungi)
Class	Mammalia (Mammals)	Lecanoromycetes (Lecanoromycetes)
Order	Rodentia (Rodents)	Lecanorales (Lecanorales)
Family	Muridae (Mice & Rats)	Stereocaulaceae
Genus	Psammomys	Stereocaulon
Species	Psammomys obesus	Stereocaulon saxatile

Conservation Status

Fat Sand Rat

LC — Least Concern

Rock Foam

NT — Near Threatened

Physical Characteristics

Attribute	Fat Sand Rat	Rock Foam
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Fat Sand Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Rock Foam

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, Sweden, and United States. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.