Oso Polar vs Rana-ladrona de Sierra de Juárez

Ursus maritimus compared with Craugastor polymniae

Key Differences

• Oso Polar is Vulnerable while Rana-ladrona de Sierra de Juárez is Near Threatened.

Taxonomic Classification

Rank	Oso Polar	Rana-ladrona de Sierra de Juárez
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Mammalia (mamíferos)	Amphibia (Amphibians)
Order	Carnivora (carnívoros)	Anura (Frogs & Toads)
Family	Ursidae (Bears)	Craugastoridae
Genus	Ursus (Bears)	Craugastor
Species	Ursus maritimus	Craugastor polymniae

Evolutionary Relationship

Oso Polar and Rana-ladrona de Sierra de Juárez share a common ancestor at the Phylum level: Chordata. (cordados)

Conservation Status

Oso Polar

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Rana-ladrona de Sierra de Juárez

NT — Near Threatened

Physical Characteristics

Attribute	Oso Polar	Rana-ladrona de Sierra de Juárez
Diet	Carnivore	—
Average Lifespan	25 years	—
Average Length	2.4 m	—
Average Weight	450.0 kg	—

Habitat & Geographic Range

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.

Rana-ladrona de Sierra de Juárez

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

Found in Mexico. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.