Aleutian Maidenhair vs Polar bear

Adiantum aleuticum compared with Ursus maritimus

Key Differences

Aleutian Maidenhair is Not Evaluated while Polar bear is Vulnerable.

Taxonomic Classification

Rank	Aleutian Maidenhair	Polar bear
Kingdom	Plantae (plantas)	Animalia (Animals)
Phylum	Tracheophyta	Chordata (cordados)
Class	Polypodiopsida (Polypodiopsida)	Mammalia (mamíferos)
Order	Polypodiales (Polypodiales)	Carnivora (carnívoros)
Family	Pteridaceae	Ursidae (Bears)
Genus	Adiantum	Ursus (Bears)
Species	Adiantum aleuticum	Ursus maritimus

Conservation Status

Aleutian Maidenhair

NE — Not Evaluated

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Aleutian Maidenhair	Polar bear
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Aleutian Maidenhair

Habitat

Typically found in moist, shaded forest floors and tropical canopies.

Range

Distributed across Belgium, Norway, and United States.

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.

Aleutian Maidenhair

The Aleutian Maidenhair (Adiantum aleuticum) is a species in the genus Adiantum. Typically found in moist, shaded forest floors and tropical canopies.

Polar bear

O maior carnivoro terrestre da Terra, o urso-polar pode ultrapassar 700 kg e e encontrado pelo gelo marinho artico, do Canada ate a Russia. Mamiferos marinhos altamente especializados que dependem do gelo marinho para cacas de focas e focas-barbadas. Excelentes nadadores capazes de percorrer grandes distancias em aguas abertas. Classificado como Vulneravel, com populacoes sob severa pressao devido a rapida perda de gelo marinho artico causada pelas mudancas climaticas.