Common Splayfoot Salamander vs ours blanc

Chiropterotriton chiropterus compared with Ursus maritimus

Key Differences

• Common Splayfoot Salamander is Critically Endangered while ours blanc is Vulnerable.

Taxonomic Classification

Rank	Common Splayfoot Salamander	ours blanc
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Amphibia (amphibien)	Mammalia (mammifères)
Order	Caudata (Caudata)	Carnivora (carnivores)
Family	Plethodontidae	Ursidae (Bears)
Genus	Chiropterotriton	Ursus (Bears)
Species	Chiropterotriton chiropterus	Ursus maritimus

Evolutionary Relationship

Common Splayfoot Salamander and ours blanc share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Common Splayfoot Salamander

CR — Critically Endangered

ours blanc

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Common Splayfoot Salamander	ours blanc
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Common Splayfoot Salamander

Habitat

Found across multiple habitat types including tropical and subtropical coniferous forests, tropical and subtropical grasslands and savannas, and Mediterranean forests and woodlands, among 6 distinct biome types spanning the Nearctic and Neotropic realms. Populations are also found in montane and highland environments at higher elevations.

Range

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

ours blanc

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.

Common Splayfoot Salamander

<em>Chiropterotriton chiropterus</em>, commonly known as the common splayfoot salamander, is a small lungless salamander in the family Plethodontidae, endemic to the Sierra Madre Oriental of Mexico. This species typically inhabits montane cloud forests and humid oak-pine forests at elevations ranging from approximately 1,200 to 2,500 metres, where it lives under rocks, logs, and within the leaf litter and moss of cool, moist forest floor microhabitats. Its geographic range is restricted to the states of Tamaulipas, Nuevo León, and adjacent parts of San Luis Potosí in northeastern Mexico. Classified as Critically Endangered on the IUCN Red List, <em>Chiropterotriton chiropterus</em> faces severe threats from deforestation, agricultural expansion, human settlement, and climate change, all of which are degrading and fragmenting the highly limited cloud forest habitats on which it depends. As a plethodontid salamander, it breathes entirely through its moist skin and buccal cavity. The species is carnivorous, typically feeding on small invertebrates such as insects, worms, and other arthropods found in the soil and leaf litter. Biological traits such as average lifespan, body length, and body weight remain poorly documented in the scientific literature for this rarely studied species.

ours blanc

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.