vs Blauwal

Arthonia calcarea compared with Balaenoptera musculus

Key Differences

is Near Threatened while Blauwal is Vulnerable.

Taxonomic Classification

Rank		Blauwal
Kingdom	Fungi (Pilze)	Animalia (Tier)
Phylum	Ascomycota (Schlauchpilze)	Chordata (Chordatiere)
Class	Arthoniomycetes (Arthoniomycetes)	Mammalia (Säugetiere)
Order	Arthoniales (Arthoniales)	Cetacea (Whales & Dolphins)
Family	Arthoniaceae	Balaenopteridae (Rorquals)
Genus	Arthonia	Balaenoptera (Rorquals)
Species	Arthonia calcarea	Balaenoptera musculus

Conservation Status

NT — Near Threatened

Blauwal

VU — Vulnerable

Population: ~15.0K

Trend: Increasing ↑

Physical Characteristics

Attribute		Blauwal
Diet	—	Carnivore
Average Lifespan	—	90 years
Average Length	—	30.0 m
Average Weight	—	150.0 t

Habitat & Geographic Range

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Blauwal

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 11 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Colombia, Ecuador). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Arthonia calcarea is a crustose lichen that grows on calcareous rock surfaces, limestone outcrops, and old mortar in sheltered situations. It forms a thin, white to grey thallus with small, dark, irregular apothecia embedded within. Near Threatened, this species is sensitive to habitat disturbance, air pollution, and the removal of old calcareous stone structures.

Blauwal

The largest animal ever known to have lived on Earth, blue whales can reach 33 meters and 200 tonnes — their hearts alone weigh as much as a small car. Found in all oceans, they migrate between polar feeding grounds and tropical breeding areas. Filter feeders consuming up to 4 tonnes of krill daily. Endangered, with global populations estimated at 10,000–25,000 after near-extinction from 20th-century whaling.