vs Polar bear

Achlya bisexualis compared with Ursus maritimus

Key Differences

• is Not Evaluated while Polar bear is Vulnerable.

Taxonomic Classification

Rank		Polar bear
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Lepidoptera (Butterflies & Moths)	Carnivora (Carnivorans)
Family	Drepanidae	Ursidae (Bears)
Genus	Achlya	Ursus (Bears)
Species	Achlya bisexualis	Ursus maritimus

Evolutionary Relationship

and Polar bear share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

NE — Not Evaluated

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Brazil 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.

Achlya bisexualis is an oomycete in the family Saprolegniaceae that decomposes organic matter in freshwater habitats and can act as a pathogen of fish and invertebrates under certain conditions. It exhibits a fascinating pheromone-based sexual reproduction system that has been extensively studied as a model for steroid hormone signaling in lower eukaryotes. Its mycelial colonies rapidly colonize dead insect and plant debris in slow-moving water.

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.