Cofre de Perote Salamander vs koala

Isthmura naucampatepetl compared with Phascolarctos cinereus

Key Differences

• Cofre de Perote Salamander is Critically Endangered while koala is Vulnerable.

Taxonomic Classification

Rank	Cofre de Perote Salamander	koala
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	Caudata (有尾目)	Diprotodontia (カンガルー目)
Family	Plethodontidae	Phascolarctidae (Koalas)
Genus	Isthmura	Phascolarctos (Koalas)
Species	Isthmura naucampatepetl	Phascolarctos cinereus

Evolutionary Relationship

Cofre de Perote Salamander and koala share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Cofre de Perote Salamander

CR — Critically Endangered

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Cofre de Perote Salamander	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Cofre de Perote 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.

koala

Habitat

Typically found in grasslands, forests, and vegetated habitats.

Range

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

Cofre de Perote Salamander

The Cofre de Perote Salamander (Isthmura naucampatepetl) is a critically endangered lungless salamander in the family Plethodontidae, known only from a single extinct volcanic peak—Cofre de Perote (Nauhcampatépetl) in the Mexican state of Veracruz. As a plethodontid, it relies entirely on cutaneous respiration through its moist skin, making it acutely dependent on cool, humid montane cloud forest conditions at high elevations. The species is associated with the pine-oak and cloud forest zones near the summit of Cofre de Perote, an isolated habitat island rising above the surrounding lowlands of Veracruz state. Such extreme topographic restriction means the entire species occupies an area of a few square kilometres, making it one of the most geographically limited vertebrates in North America. It is classified as Critically Endangered by the IUCN due to its extremely small and severely fragmented range, ongoing habitat degradation from agricultural encroachment, logging, and reforestation with non-native pine species, and the probable future impacts of climate change on cloud forest at high elevation. Population size estimates are very uncertain, but field surveys have found the species to be extremely rare. No captive breeding programmes are currently known to exist for this taxon.

koala

オーストラリア東部・南東部を代表する有袋類で、体重は最大15kgに達し、低カロリーのユーカリの葉食から得るエネルギーを節約するために1日最大22時間を睡眠に費やす。他の哺乳類の多くを死に至らしめる有毒なユーカリ成分を処理するために高度に特化しており、解毒に特別に適応した腸内微生物叢を持つ。クラミジア感染症、生息地の伐採、気候変動により個体数が激減し、2022年に絶滅危惧種に指定された。