Common Nodding Moss vs koala

Pohlia nutans compared with Phascolarctos cinereus

Key Differences

Common Nodding Moss is Least Concern while koala is Vulnerable.

Taxonomic Classification

Rank	Common Nodding Moss	koala
Kingdom	Plantae (植物)	Animalia (動物)
Phylum	Bryophyta	Chordata (脊索動物)
Class	Bryopsida (マゴケ綱)	Mammalia (哺乳類)
Order	Bryales (Bryales)	Diprotodontia (カンガルー目)
Family	Mniaceae	Phascolarctidae (Koalas)
Genus	Pohlia	Phascolarctos (Koalas)
Species	Pohlia nutans	Phascolarctos cinereus

Conservation Status

Common Nodding Moss

LC — Least Concern

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Common Nodding Moss	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Common Nodding Moss

Habitat

Native to Asia and Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), North America (United States), and South America (Brazil, Colombia).

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.

Common Nodding Moss

Pohlia nutans, the common nodding moss, is a widespread pleurocarpous moss in the family Mniaceae found across boreal, temperate, and arctic regions of the world. The species is named for the characteristic drooping, nodding posture of its capsules when mature. Pohlia nutans typically colonizes acidic substrates including peat, heathland soils, rotting logs, and rocky outcrops in boreal and montane environments, and is particularly common in disturbed or open habitats. Its geographic range is extensive, spanning Europe, Asia, North America, and South America, reflecting its ecological versatility and tolerance of a wide range of moisture and temperature conditions. The species is currently assessed as Least Concern by the IUCN. Biological traits such as lifespan, body size, and diet remain poorly documented for this species beyond its known autotrophic lifestyle. Like all mosses, Pohlia nutans reproduces through spores released from its stalked capsules and through vegetative propagation. It plays a modest but consistent role in moisture retention, soil stabilization, and early colonization of disturbed substrates across the boreal and temperate zones of multiple continents.

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。