Black-marked Robber Frog vs Polar bear

Pristimantis melanoproctus compared with Ursus maritimus

Key Differences

• Black-marked Robber Frog is Data Deficient while Polar bear is Vulnerable.

Taxonomic Classification

Rank	Black-marked Robber Frog	Polar bear
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Amphibia (Amphibians)	Mammalia (Mammals)
Order	Anura (Frogs & Toads)	Carnivora (Carnivorans)
Family	Craugastoridae	Ursidae (Bears)
Genus	Pristimantis	Ursus (Bears)
Species	Pristimantis melanoproctus	Ursus maritimus

Evolutionary Relationship

Black-marked Robber Frog and Polar bear share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Black-marked Robber Frog

DD — Data Deficient

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Black-marked Robber Frog	Polar bear
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Black-marked Robber Frog

Habitat

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

Range

Found in Venezuela.

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.

Black-marked Robber Frog

The Black-marked Robber Frog (Pristimantis melanoproctus) is a species in the genus Pristimantis. Its conservation status is listed as Data Deficient, indicating insufficient data for assessment. Typically found in freshwater habitats, moist forests, and wetlands.

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.