Cultivated Mushroom vs Polar bear

Agaricus bisporus compared with Ursus maritimus

Key Differences

Cultivated Mushroom is Not Evaluated while Polar bear is Vulnerable.
Cultivated Mushroom is decomposer while Polar bear is carnivore.
Polar bear is 22500.0x heavier than Cultivated Mushroom.
Polar bear lives longer (25 years vs 1 years).

Taxonomic Classification

Rank	Cultivated Mushroom	Polar bear
Kingdom	Fungi (真菌界)	Animalia (动物界)
Phylum	Basidiomycota (担子菌门)	Chordata (脊索动物门)
Class	Agaricomycetes (傘菌綱)	Mammalia (哺乳動物)
Order	Agaricales (伞菌目)	Carnivora (食肉目)
Family	Agaricaceae (Agarics)	Ursidae (Bears)
Genus	Agaricus (Button Mushrooms)	Ursus (Bears)
Species	Agaricus bisporus	Ursus maritimus

Conservation Status

Cultivated Mushroom

NE — Not Evaluated

Trend: Stable →

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Cultivated Mushroom	Polar bear
Diet	Decomposer	Carnivore
Average Lifespan	1 years	25 years
Average Length	6 cm	2.4 m
Average Weight	20 g	450.0 kg

Habitat & Geographic Range

Cultivated Mushroom

Habitat

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

Range

Distributed across Austria, Belgium, Norway, and Sweden.

Polar bear

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

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

Cultivated Mushroom

双孢蘑菇（Agaricus bisporus）是全球种植最广泛的蘑菇，其不同生长阶段分别称为白蘑菇、褐蘑菇和大褐菇，约占世界蘑菇总产量的40%。该种由原产于欧洲和北美草地的野生Agaricus属驯化而来，在堆肥秸秆和粪便上的受控环境中商业化栽培。富含B族维生素、硒和膳食纤维，是人类烹饪中营养最为多功能的真菌之一。