Colombian Stubfoot Toad vs Polar bear

Atelopus minutulus compared with Ursus maritimus

Key Differences

• Colombian Stubfoot Toad is Critically Endangered while Polar bear is Vulnerable.

Taxonomic Classification

Rank	Colombian Stubfoot Toad	Polar bear
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Amphibia (両生類)	Mammalia (哺乳類)
Order	Anura (カエル)	Carnivora (ネコ目)
Family	Bufonidae	Ursidae (Bears)
Genus	Atelopus	Ursus (Bears)
Species	Atelopus minutulus	Ursus maritimus

Evolutionary Relationship

Colombian Stubfoot Toad and Polar bear share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Colombian Stubfoot Toad

CR — Critically Endangered

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

Colombian Stubfoot Toad

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 5 distinct biome types spanning the Neotropic and Oceanian realms. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Colombia. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Colombian Stubfoot Toad

<em>Atelopus minutulus</em>, the Colombian stubfoot toad, is a critically endangered harlequin toad in the family Bufonidae, endemic to Colombia. This species is assessed as Critically Endangered by the IUCN, placing it among the most threatened amphibians in the world. Like many members of the genus <em>Atelopus</em>, it has suffered severe population declines attributed primarily to the lethal chytrid fungus <em>Batrachochytrium dendrobatidis</em>, compounded by habitat destruction and climate change. The species occupies tropical and subtropical moist broadleaf forests, dry broadleaf forests, and grassland and savanna habitats, suggesting broader ecological tolerance than many congeners. Stubfoot toads are characteristically diurnal and are often associated with stream margins in humid forest environments, where males typically call from rocks or vegetation near fast-flowing water. Their bright colouration in some <em>Atelopus</em> species signals toxicity, though the extent of toxicity in <em>A. minutulus</em> is not well established. Conservation efforts for Colombian stubfoot toads include captive breeding programmes and disease-resistance research. Biological traits of this species remain poorly documented in the scientific literature.

Polar bear

地球上で最大の陸上肉食動物であるホッキョクグマは700kgを超えることがあり、カナダからロシアまでの北極海氷域全体に分布する。ワモンアザラシとヒゲアザラシを狩るために海氷に依存する高度に特化した海洋哺乳類である。広大な距離を泳ぐことができる優れた泳者でもある。脆弱種に指定されており、気候変動による急激な北極海氷の消失で個体群が深刻な圧力を受けている。