Big Finner vs Mast Disco

Balaenoptera physalus compared with Hymenoscyphus fagineus

Key Differences

• Big Finner is Endangered while Mast Disco is Not Evaluated.

Taxonomic Classification

Rank	Big Finner	Mast Disco
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Ascomycota (Sac Fungi)
Class	Mammalia (Mammals)	Leotiomycetes (Leotiomycetes)
Order	Cetacea (Whales & Dolphins)	Helotiales (Helotiales)
Family	Balaenopteridae (Rorquals)	Helotiaceae
Genus	Balaenoptera (Rorquals)	Hymenoscyphus
Species	Balaenoptera physalus	Hymenoscyphus fagineus

Conservation Status

Big Finner

EN — Endangered

Mast Disco

NE — Not Evaluated

Physical Characteristics

Attribute	Big Finner	Mast Disco
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Big Finner

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 4 distinct biome types within the Neotropic biogeographic realm.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), and South America (Colombia, Ecuador, Venezuela). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Mast Disco

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Denmark, and Norway.

Big Finner

Big Finner (Balaenoptera physalus) is classified as Endangered (EN) on the IUCN Red List. At high risk of extinction in the wild, with significant population decline and ongoing threats to survival.

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway