Fat Sand Rat vs Surprise Thorius

Psammomys obesus compared with Thorius insperatus

Key Differences

• Fat Sand Rat is Least Concern while Surprise Thorius is Critically Endangered.

Taxonomic Classification

Rank	Fat Sand Rat	Surprise Thorius
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Amphibia (Amphibians)
Order	Rodentia (Rodents)	Caudata (Caudata)
Family	Muridae (Mice & Rats)	Plethodontidae
Genus	Psammomys	Thorius
Species	Psammomys obesus	Thorius insperatus

Evolutionary Relationship

Fat Sand Rat and Surprise Thorius share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Fat Sand Rat

LC — Least Concern

Surprise Thorius

CR — Critically Endangered

Physical Characteristics

Attribute	Fat Sand Rat	Surprise Thorius
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Fat Sand Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Surprise Thorius

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

Found in Mexico. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.