Cramp Balls vs Polynesian rat

Daldinia concentrica compared with Rattus exulans

Key Differences

Cramp Balls is Vulnerable while Polynesian rat is Least Concern.

Taxonomic Classification

Rank	Cramp Balls	Polynesian rat
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Ascomycota (Sac Fungi)	Chordata (Chordates)
Class	Sordariomycetes (Sordariomycetes)	Mammalia (Mammals)
Order	Xylariales (Xylariales)	Rodentia (Rodents)
Family	Hypoxylaceae	Muridae (Mice & Rats)
Genus	Daldinia	Rattus
Species	Daldinia concentrica	Rattus exulans

Conservation Status

Cramp Balls

VU — Vulnerable

Polynesian rat

LC — Least Concern

Physical Characteristics

Attribute	Cramp Balls	Polynesian rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Cramp Balls

Habitat

Native to Asia and Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), North America (United States), and South America (Brazil). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Polynesian rat

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical coniferous forests, among 4 distinct biome types spanning the Australasia and Indomalayan realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (6 countries), Europe (United Kingdom), North America (United States), Oceania and the Pacific (11 countries), and South America (Chile).