arrow worm vs Red-billed Duck

Parasagitta elegans compared with Anas erythrorhyncha

Key Differences

• arrow worm is Not Evaluated while Red-billed Duck is Least Concern.

Taxonomic Classification

Rank	arrow worm	Red-billed Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chaetognatha (arrow worms)	Chordata (Chordates)
Class	Sagittoidea (Sagittoidea)	Aves (Birds)
Order	Aphragmophora (Aphragmophora)	Anseriformes (Anseriformes)
Family	Sagittidae	Anatidae
Genus	Parasagitta	Anas
Species	Parasagitta elegans	Anas erythrorhyncha

Evolutionary Relationship

arrow worm and Red-billed Duck share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

arrow worm

NE — Not Evaluated

Red-billed Duck

LC — Least Concern

Physical Characteristics

Attribute	arrow worm	Red-billed Duck
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.

Red-billed Duck

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found across Europe (6 countries) and South America (Ecuador).

arrow worm

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

Red-billed Duck

Red-billed Duck (Anas erythrorhyncha) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway