Australian treefern vs Polar bear

Dicksonia antarctica compared with Ursus maritimus

Key Differences

Australian treefern is Not Evaluated while Polar bear is Vulnerable.

Taxonomic Classification

Rank	Australian treefern	Polar bear
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Tracheophyta	Chordata (Chordates)
Class	Polypodiopsida (Polypodiopsida)	Mammalia (Mammals)
Order	Cyatheales (Cyatheales)	Carnivora (Carnivorans)
Family	Dicksoniaceae	Ursidae (Bears)
Genus	Dicksonia	Ursus (Bears)
Species	Dicksonia antarctica	Ursus maritimus

Conservation Status

Australian treefern

NE — Not Evaluated

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

Australian treefern

Habitat

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

Range

Distributed across Ireland, Portugal, and United Kingdom.

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.

Australian treefern

The Australian treefern (Dicksonia antarctica) is a species in the genus Dicksonia. Typically found in moist, shaded forest floors and tropical canopies. Dicksonia antarctica contributes to the biodiversity of its native ecosystems.

Polar bear

The largest land carnivore on Earth, polar bears can exceed 700 kg and are found across Arctic sea ice from Canada to Russia. Highly specialized marine mammals that rely on sea ice to hunt ringed and bearded seals. Excellent swimmers capable of covering vast distances in open water. Listed as Vulnerable, with populations under severe pressure from rapid Arctic sea ice loss due to climate change.