Common Metad vs Downy Emerald

Millardia meltada compared with Cordulia aenea

Taxonomic Classification

Rank	Common Metad	Downy Emerald
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Chordata (脊索动物门)	Arthropoda (节肢动物门)
Class	Mammalia (哺乳動物)	Insecta (昆蟲綱)
Order	Rodentia (啮齿目)	Odonata (蜻蜓目)
Family	Muridae (Mice & Rats)	Corduliidae
Genus	Millardia	Cordulia
Species	Millardia meltada	Cordulia aenea

Evolutionary Relationship

Common Metad and Downy Emerald share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

Common Metad

LC — Least Concern

Downy Emerald

LC — Least Concern

Physical Characteristics

Attribute	Common Metad	Downy Emerald
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Metad

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Downy Emerald

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Luxembourg, Norway, and Sweden.

Common Metad

The Common Metad (<em>Millardia meltada</em>) is a rodent belonging to the genus <em>Millardia</em> within the family Muridae. As a member of the Old World rats and mice, this species is typically found in diverse terrestrial and aquatic ecosystems across its range. The Common Metad is classified as Least Concern on the IUCN Red List, indicating that its populations are currently stable and not facing immediate extinction risk. Detailed biological traits such as body length, weight, and lifespan have not been widely documented for this species in available records. Its taxonomy places it within the order Rodentia, which encompasses a broad array of gnawing mammals adapted to a wide variety of ecological niches. While specific dietary habits are not well characterized in the available data, members of the genus <em>Millardia</em> are generally understood to be omnivorous, feeding on plant material and invertebrates typical of their habitat. Ongoing monitoring is important for ensuring this species maintains its current conservation standing.

Downy Emerald

绒毛翠蜓（Cordulia aenea）在IUCN红色名录中被列为无危（LC）。其种群分布广泛、数量丰富，种群状况稳定，目前无迫切保护需求。