Colombian Oldfield Mouse vs Pygmy three-toed sloth

Thomasomys dispar compared with Bradypus pygmaeus

Key Differences

• Colombian Oldfield Mouse is Data Deficient while Pygmy three-toed sloth is Critically Endangered.

Taxonomic Classification

Rank	Colombian Oldfield Mouse	Pygmy three-toed sloth
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class same	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order	Rodentia (อันดับสัตว์ฟันแทะ)	Pilosa (อันดับสลอธและตัวกินมด)
Family	Cricetidae	Bradypodidae (Three-toed Sloths)
Genus	Thomasomys	Bradypus (Three-toed Sloths)
Species	Thomasomys dispar	Bradypus pygmaeus

Evolutionary Relationship

Colombian Oldfield Mouse and Pygmy three-toed sloth share a common ancestor at the Class level: Mammalia. (สัตว์เลี้ยงลูกด้วยน้ำนม)

Conservation Status

Colombian Oldfield Mouse

DD — Data Deficient

Pygmy three-toed sloth

CR — Critically Endangered

Physical Characteristics

Attribute	Colombian Oldfield Mouse	Pygmy three-toed sloth
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Colombian Oldfield Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Pygmy three-toed sloth

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Colombian Oldfield Mouse

<em>Thomasomys dispar</em>, commonly known as the Colombian Oldfield Mouse, is a small rodent species belonging to the genus <em>Thomasomys</em> within the family Cricetidae. This species is classified as Data Deficient, indicating that insufficient information is currently available to evaluate its conservation status with confidence. It has been documented in Colombia, where it inhabits diverse terrestrial and aquatic-adjacent environments. Members of the genus <em>Thomasomys</em> are typically associated with high-altitude Andean habitats, including páramo grasslands, shrublands, and montane forest edges, where they occupy ground-level microhabitats and burrow in soft soils. These mice are generally omnivorous, consuming seeds, plant material, and invertebrates, though specific dietary data for <em>Thomasomys dispar</em> have not been recorded. Biological traits of this species remain poorly documented in the scientific literature. The Data Deficient classification highlights the need for targeted surveys in Colombian Andean regions to determine population size, distribution, and the ecological requirements of this poorly known rodent.