Colombian Oldfield Mouse vs 瓶鼻海豚

Thomasomys dispar compared with Tursiops truncatus

Key Differences

• Colombian Oldfield Mouse is Data Deficient while 瓶鼻海豚 is Least Concern.

Taxonomic Classification

Rank	Colombian Oldfield Mouse	瓶鼻海豚
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class same	Mammalia (哺乳動物)	Mammalia (哺乳動物)
Order	Rodentia (啮齿目)	Cetacea (Whales & Dolphins)
Family	Cricetidae	Delphinidae (Oceanic Dolphins)
Genus	Thomasomys	Tursiops (Bottlenose Dolphins)
Species	Thomasomys dispar	Tursiops truncatus

Evolutionary Relationship

Colombian Oldfield Mouse and 瓶鼻海豚 share a common ancestor at the Class level: Mammalia. (哺乳動物)

Conservation Status

Colombian Oldfield Mouse

DD — Data Deficient

瓶鼻海豚

LC — Least Concern

Population: ~600.0K

Trend: Stable →

Physical Characteristics

Attribute	Colombian Oldfield Mouse	瓶鼻海豚
Diet	—	Carnivore
Average Lifespan	—	45 years
Average Length	—	3.0 m
Average Weight	—	300.0 kg

Habitat & Geographic Range

Colombian Oldfield Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

瓶鼻海豚

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 12 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), and South America (Colombia, Ecuador, Venezuela).

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.

瓶鼻海豚

作为研究最广泛、最受认可的海豚物种，宽吻海豚栖息于全球从沿岸浅水到远洋的温暖和温带海域。高度智能，大脑相对体型较大，展示自我认知、复杂交流和社会学习。生活在流动的分裂-融合社会中，合作围捕鱼群。是海洋生态系统健康的关键指示物种。

Shared Countries

Both species can be found in 1 countries:

🇨🇴 Colombia