Niceforo Maria’s Oldfield Mouse vs Olive Pearl

Thomasomys nicefori compared with Udea olivalis

Key Differences

• Niceforo Maria’s Oldfield Mouse is Least Concern while Olive Pearl is Near Threatened.

Taxonomic Classification

Rank	Niceforo Maria’s Oldfield Mouse	Olive Pearl
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Rodentia (Rodents)	Lepidoptera (Butterflies & Moths)
Family	Cricetidae	Crambidae
Genus	Thomasomys	Udea
Species	Thomasomys nicefori	Udea olivalis

Evolutionary Relationship

Niceforo Maria’s Oldfield Mouse and Olive Pearl share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Niceforo Maria’s Oldfield Mouse

LC — Least Concern

Olive Pearl

NT — Near Threatened

Physical Characteristics

Attribute	Niceforo Maria’s Oldfield Mouse	Olive Pearl
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Niceforo Maria’s Oldfield Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Olive Pearl

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

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