Aquatic oligochaete worm vs koala

Potamothrix bavaricus compared with Phascolarctos cinereus

Key Differences

• Aquatic oligochaete worm is Not Evaluated while koala is Vulnerable.

Taxonomic Classification

Rank	Aquatic oligochaete worm	koala
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Annelida (Anelídeo)	Chordata (cordados)
Class	Clitellata (Clitellata)	Mammalia (mamíferos)
Order	Tubificida (Tubificida)	Diprotodontia (Marsupials)
Family	Naididae	Phascolarctidae (Koalas)
Genus	Potamothrix	Phascolarctos (Koalas)
Species	Potamothrix bavaricus	Phascolarctos cinereus

Evolutionary Relationship

Aquatic oligochaete worm and koala share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Aquatic oligochaete worm

NE — Not Evaluated

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

Aquatic oligochaete worm

Habitat

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

Range

Found across Europe (7 countries) and North America (United States).

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.

Aquatic oligochaete worm

The Aquatic oligochaete worm (Potamothrix bavaricus) is a species in the genus Potamothrix. Native to Europe and North America, inhabiting ecosystems characteristic of the region.

koala

Icônico marsupial do leste e sudeste da Austrália, os coalas pesam até 15 kg e passam até 22 horas diárias dormindo para conservar energia de sua dieta de folhas de eucalipto, com baixo teor calórico. Altamente especializados para processar os compostos tóxicos do eucalipto que matariam a maioria dos outros mamíferos, possuem microbiomas intestinais unicamente adaptados para a destoxificação. Classificado como Em Perigo em 2022, com populações dizimadas pela doença de clamídia, desmatamento e mudanças climáticas.