Coco yam vs Common Metad

Colocasia esculenta compared with Millardia meltada

Key Differences

• Coco yam is Not Evaluated while Common Metad is Least Concern.

Taxonomic Classification

Rank	Coco yam	Common Metad
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Lepidoptera (Butterflies & Moths)	Rodentia (Rodents)
Family	Noctuidae	Muridae (Mice & Rats)
Genus	Colocasia	Millardia
Species	Colocasia esculenta	Millardia meltada

Evolutionary Relationship

Coco yam and Common Metad share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Coco yam

NE — Not Evaluated

Common Metad

LC — Least Concern

Physical Characteristics

Attribute	Coco yam	Common Metad
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Coco yam

Habitat

Inhabits flooded grasslands and savannas within the Afrotropic biogeographic realm.

Range

Widely distributed across Africa (30 countries), Asia (6 countries), Europe (9 countries), North America (8 countries), Oceania and the Pacific (8 countries), and South America (6 countries).

Common Metad

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Coco yam

Coco Yam (Colocasia esculenta), also widely known as Taro, is a pantropical herbaceous plant in the family Araceae, cultivated as a food crop for more than 10,000 years and considered one of humanity's oldest cultivated plants. The species grows from large starchy corms and produces broad, sagittate leaves with distinctive water-repellent surfaces—an adaptation that has earned the plant its association with the lotus effect in traditional culture. Corms, cormels, and young leaves are all edible after thorough cooking, which is essential to neutralise the calcium oxalate crystals that cause intense irritation when raw. Originating in South and Southeast Asia, Colocasia esculenta has been dispersed across tropical Africa, the Pacific Islands, the Caribbean, and the Americas through centuries of agricultural exchange and migration. It thrives in wet or waterlogged soils, being particularly associated with paddy cultivation, irrigation channels, and swampy ground, though drought-tolerant cultivars exist. The species is a dietary staple in Hawaii, where it is the basis of poi; in West Africa, where it is boiled or pounded; and across the Pacific Islands, where it sustains subsistence communities. Given its widespread cultivation and genetic diversity represented across thousands of landraces, IUCN has not formally evaluated its conservation status. The species is not considered at risk.

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.