arrow worm vs koala

Parasagitta elegans compared with Phascolarctos cinereus

Key Differences

• arrow worm is Not Evaluated while koala is Vulnerable.

Taxonomic Classification

Rank	arrow worm	koala
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chaetognatha (vermes-flecha)	Chordata (cordados)
Class	Sagittoidea (Sagittoidea)	Mammalia (mamíferos)
Order	Aphragmophora (Aphragmophora)	Diprotodontia (Marsupials)
Family	Sagittidae	Phascolarctidae (Koalas)
Genus	Parasagitta	Phascolarctos (Koalas)
Species	Parasagitta elegans	Phascolarctos cinereus

Evolutionary Relationship

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

Conservation Status

arrow worm

NE — Not Evaluated

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

arrow worm

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark and Norway.

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.

arrow worm

The Arrow worm, Parasagitta elegans, is a species. Native to Europe, 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.