arrow worm vs Big-eared opossum

Parasagitta elegans compared with Didelphis aurita

Key Differences

• arrow worm is Not Evaluated while Big-eared opossum is Least Concern.

Taxonomic Classification

Rank	arrow worm	Big-eared opossum
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chaetognatha (arrow worms)	Chordata (Chordates)
Class	Sagittoidea (Sagittoidea)	Mammalia (Mammals)
Order	Aphragmophora (Aphragmophora)	Didelphimorphia (Didelphimorphia)
Family	Sagittidae	Didelphidae
Genus	Parasagitta	Didelphis
Species	Parasagitta elegans	Didelphis aurita

Evolutionary Relationship

arrow worm and Big-eared opossum share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

arrow worm

NE — Not Evaluated

Big-eared opossum

LC — Least Concern

Physical Characteristics

Attribute	arrow worm	Big-eared opossum
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

arrow worm

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark and Norway.

Big-eared opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

arrow worm

The Arrow worm, Parasagitta elegans, is a species. Native to Europe, inhabiting ecosystems characteristic of the region.

Big-eared opossum

The Big-eared opossum (Didelphis aurita) is a species in the genus Didelphis. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.