vs koala

Achnanthes armillaris compared with Phascolarctos cinereus

Key Differences

is Not Evaluated while koala is Vulnerable.

Taxonomic Classification

Rank		koala
Kingdom	Chromista (Chromista)	Animalia (động vật)
Phylum	Ochrophyta (Ochrophyta)	Chordata (động vật có dây sống)
Class	Bacillariophyceae (Bacillariophyceae)	Mammalia (lớp Thú)
Order	Achnanthales (Achnanthales)	Diprotodontia (Thú hai răng trước)
Family	Achnanthaceae	Phascolarctidae (Koalas)
Genus	Achnanthes	Phascolarctos (Koalas)
Species	Achnanthes armillaris	Phascolarctos cinereus

Conservation Status

NE — Not Evaluated

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

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.

Achnanthes armillaris is a small, monoraphid diatom in the family Achnanthidiaceae, attached to submerged substrates by a mucilage pad at one pole of its frustule. It inhabits freshwater streams, rivers, and lakes, forming part of the epilithic and epiphytic diatom community. Like other Achnanthes species, it serves as a bioindicator for water chemistry and flow regime in freshwater monitoring programs.

koala

Iconic marsupial of eastern and southeastern Australia, koalas weigh up to 15 kg and spend up to 22 hours daily sleeping to conserve energy from their low-calorie eucalyptus leaf diet. Highly specialized to process toxic eucalyptus compounds that would kill most other mammals, they have gut microbiomes uniquely adapted for detoxification. Listed as Endangered in 2022, with populations decimated by chlamydia disease, habitat clearing, and climate change.