clear glass snail vs koala

Oxychilus clarus compared with Phascolarctos cinereus

Key Differences

• clear glass snail is Near Threatened while koala is Vulnerable.

Taxonomic Classification

Rank	clear glass snail	koala
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Mollusca (軟体動物)	Chordata (脊索動物)
Class	Gastropoda (腹足綱)	Mammalia (哺乳類)
Order	Stylommatophora (Stylommatophora)	Diprotodontia (カンガルー目)
Family	Oxychilidae	Phascolarctidae (Koalas)
Genus	Oxychilus	Phascolarctos (Koalas)
Species	Oxychilus clarus	Phascolarctos cinereus

Evolutionary Relationship

clear glass snail and koala share a common ancestor at the Kingdom level: Animalia. (動物)

Conservation Status

clear glass snail

NT — Near Threatened

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	clear glass snail	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

clear glass snail

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Distributed across France and Italy. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

clear glass snail

Clear Glass Snail 2 refers to a second species sharing the common name 'clear glass snail,' likely a distinct taxon within the families Vitrinidae or Gastrodontidae that shares the characteristic translucent, thin-walled shell morphology. Translucent-shelled land snails in these families are distributed across temperate zones of the Northern Hemisphere, with centers of diversity in Europe and North America. Many species in these families are restricted to specific microhabitats characterized by stable humidity and abundant organic matter, such as old deciduous woodland, valley mires, and calcareous grassland with a dense ground flora. These snails graze on the surface film of algae, fungi, and bacteria on dead wood and leaf litter, contributing to nutrient cycling in the leaf-litter layer. The glassy or semi-transparent shell is a shared evolutionary feature across multiple lineages, reflecting convergent adaptation to moist, shaded environments where predation pressure may differ from open habitats. Many glass snails are poorly documented in terms of population size and trends. Conservation concerns for thin-shelled snails typically center on habitat destruction, desiccation from climate change, and acidification of soils that reduce the calcium carbonate availability necessary for shell formation.

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。