Bitter Tooth vs pato-de-laysan

Hydnellum scabrosum compared with Anas laysanensis

Key Differences

Bitter Tooth is Near Threatened while pato-de-laysan is Critically Endangered.

Taxonomic Classification

Rank	Bitter Tooth	pato-de-laysan
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Chordata (cordados)
Class	Agaricomycetes (Mushrooms)	Aves (ave)
Order	Thelephorales (Thelephorales)	Anseriformes (Anseriformes)
Family	Bankeraceae	Anatidae
Genus	Hydnellum	Anas
Species	Hydnellum scabrosum	Anas laysanensis

Conservation Status

Bitter Tooth

NT — Near Threatened

pato-de-laysan

CR — Critically Endangered

Physical Characteristics

Attribute	Bitter Tooth	pato-de-laysan
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bitter Tooth

Habitat

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

Range

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

pato-de-laysan

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Belgium, France, Netherlands, Norway, and United Kingdom. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Bitter Tooth

The Bitter Tooth (Hydnellum scabrosum) is a species in the genus Hydnellum. It is currently classified as Near Threatened on the IUCN Red List. Typically found in forest floors, decomposing wood, and soil ecosystems.

pato-de-laysan

O Pato-de-Laysan (Anas laysanensis) está classificado como Criticamente Ameaçado (CR) na Lista Vermelha da IUCN. Enfrenta um risco extremamente alto de extinção na natureza devido ao grave declínio populacional e à perda de habitat.