Common Earthball vs Komodo Dragon

Scleroderma citrinum compared with Varanus komodoensis

Key Differences

Common Earthball is Least Concern while Komodo Dragon is Endangered.

Taxonomic Classification

Rank	Common Earthball	Komodo Dragon
Kingdom	Fungi (nấm)	Animalia (động vật)
Phylum	Basidiomycota (Club Fungi)	Chordata (động vật có dây sống)
Class	Agaricomycetes (Mushrooms)	Reptilia (động vật bò sát)
Order	Boletales (Boletales)	Squamata (Bò sát có vảy)
Family	Sclerodermataceae	Varanidae (Monitor Lizards)
Genus	Scleroderma	Varanus (Monitor Lizards)
Species	Scleroderma citrinum	Varanus komodoensis

Conservation Status

Common Earthball

LC — Least Concern

Komodo Dragon

EN — Endangered

Population: ~3.5K

Trend: Stable →

Physical Characteristics

Attribute	Common Earthball	Komodo Dragon
Diet	—	Carnivore
Average Lifespan	—	30 years
Average Length	—	2.6 m
Average Weight	—	70.0 kg

Habitat & Geographic Range

Common Earthball

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), North America (United States), and South America (Brazil, Chile).

Komodo Dragon

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 4 distinct biome types spanning the Australasia and Indomalayan realms. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Indonesia. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Common Earthball

Scleroderma citrinum, commonly known as the common earthball or pigskin poison puffball, is a widespread ectomycorrhizal fungus in the family Sclerodermataceae, classified as Least Concern by the IUCN. The species occurs across Asia, Europe, North America, and South America, typically found on forest floors, decomposing wood, and mineral-rich acidic soils in association with hardwood and conifer tree roots. Unlike true puffballs, Scleroderma citrinum is considered poisonous and should not be confused with edible species. Its thick, warty outer skin ranges from yellowish-brown to ochre and encloses a dark purplish-black spore mass that matures over time. The species plays an important ecological role as a mycorrhizal partner, forming mutualistic associations with the roots of oaks, beeches, pines, and other trees, facilitating the uptake of water and nutrients by host plants in exchange for photosynthetically derived carbon. Fruiting bodies typically emerge from late summer through autumn, releasing spores through irregular cracks or a central apical opening when mature. Scleroderma citrinum is a host for the parasitic fungus Pseudoboletus parasiticus, making it ecologically significant within forest fungal communities. Biological traits of this species remain poorly documented in the scientific literature.