Carolina mosquitofern vs Oso Polar

Azolla caroliniana compared with Ursus maritimus

Key Differences

Carolina mosquitofern is Least Concern while Oso Polar is Vulnerable.

Taxonomic Classification

Rank	Carolina mosquitofern	Oso Polar
Kingdom	Plantae (planta)	Animalia (Animals)
Phylum	Tracheophyta	Chordata (cordados)
Class	Polypodiopsida (Polypodiopsida)	Mammalia (mamíferos)
Order	Salviniales (Salviniales)	Carnivora (carnívoros)
Family	Salviniaceae	Ursidae (Bears)
Genus	Azolla	Ursus (Bears)
Species	Azolla caroliniana	Ursus maritimus

Conservation Status

Carolina mosquitofern

LC — Least Concern

Oso Polar

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Carolina mosquitofern	Oso Polar
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Carolina mosquitofern

Habitat

Inhabits deserts and xeric shrublands and flooded grasslands and savannas within the Palearctic biogeographic realm.

Range

Widely distributed across Africa (Egypt), Asia (Japan, Taiwan), Europe (7 countries), North America (Canada, Cuba, United States), and South America (Brazil, Colombia).

Oso Polar

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.

Carolina mosquitofern

The Carolina Mosquitofern (Azolla caroliniana) is a species in the genus Azolla. It is currently classified as Least Concern on the IUCN Red List. Inhabits deserts and xeric shrublands and flooded grasslands and savannas within the Palearctic biogeographic realm.

Oso Polar

El mayor carnivoro terrestre de la Tierra, el oso polar puede superar los 700 kg y se encuentra en el hielo marino del Artico, desde Canada hasta Rusia. Es un mamifero marino altamente especializado que depende del hielo marino para cazar focas anilladas y barbadas. Excelente nadador capaz de cubrir grandes distancias en agua abierta. Clasificado como Vulnerable, sus poblaciones soportan una presion severa por la rapida perdida de hielo marino artico debida al cambio climatico.