Big Finner vs Curled Thistle

Balaenoptera physalus compared with Carduus crispus

Key Differences

• Big Finner is Endangered while Curled Thistle is Least Concern.

Taxonomic Classification

Rank	Big Finner	Curled Thistle
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Mammalia (Mammals)	Magnoliopsida (Dicots)
Order	Cetacea (Whales & Dolphins)	Asterales (Daisies & Sunflowers)
Family	Balaenopteridae (Rorquals)	Asteraceae (Daisy Family)
Genus	Balaenoptera (Rorquals)	Carduus
Species	Balaenoptera physalus	Carduus crispus

Conservation Status

Big Finner

EN — Endangered

Curled Thistle

LC — Least Concern

Physical Characteristics

Attribute	Big Finner	Curled Thistle
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.

Curled Thistle

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Widely distributed across Asia (Japan, North Korea), Europe (7 countries), and North America (Canada, United States).

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 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden