Cheetah vs coastal arrow worm

Acinonyx jubatus compared with Parasagitta setosa

Key Differences

• Cheetah is Vulnerable while coastal arrow worm is Not Evaluated.

Taxonomic Classification

Rank	Cheetah	coastal arrow worm
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Chaetognatha (arrow worms)
Class	Mammalia (Mammals)	Sagittoidea (Sagittoidea)
Order	Carnivora (Carnivorans)	Aphragmophora (Aphragmophora)
Family	Felidae (Cats)	Sagittidae
Genus	Acinonyx (Cheetahs)	Parasagitta
Species	Acinonyx jubatus	Parasagitta setosa

Evolutionary Relationship

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

Conservation Status

Cheetah

VU — Vulnerable

Population: ~6.7K

Trend: Decreasing ↓

coastal arrow worm

NE — Not Evaluated

Physical Characteristics

Attribute	Cheetah	coastal arrow worm
Diet	Carnivore	—
Average Lifespan	12 years	—
Average Length	1.5 m	—
Average Weight	50.0 kg	—

Habitat & Geographic Range

Cheetah

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical grasslands and savannas, and flooded grasslands and savannas, among 9 distinct biome types spanning the Afrotropic and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Botswana, Iran, Kenya, Namibia, and Tanzania. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

coastal arrow worm

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Russia.

Cheetah

The fastest land animal on Earth, reaching speeds of 112 km/h over short distances across African and Iranian grasslands. Slender build with a deep chest, long legs, and distinctive black tear-stripe markings. Unlike other big cats, cheetahs vocalize with chirps and purrs. Vulnerable, with only ~7,000 remaining due to habitat fragmentation and competition with larger predators.

coastal arrow worm

Parasagitta setosa, the coastal arrow worm, is a chaetognath in the family Sagittidae inhabiting the coastal and neritic waters of the northeastern Atlantic Ocean and adjacent North Sea and Baltic Sea, with confirmed records from Denmark, Norway, and Russia. Arrow worms are small, transparent, torpedo-shaped marine invertebrates typically 1–5 centimeters long, and despite their common name, are neither worms nor closely related to any familiar animal group; they form their own phylum, Chaetognatha, comprising around 120 species. Parasagitta setosa is a predatory planktonic species, using stiff bristle-like grasping spines flanking its mouth to seize copepods, small fish larvae, and other zooplankton that form the bulk of its diet. It occupies neritic plankton communities, often occurring in brackish coastal waters and estuaries where many arrow worm species cannot tolerate reduced salinity. The species serves as an important prey item for fish including herring and sprat and functions as a significant link in coastal marine food webs. Arrow worm phylogenetic position has been debated extensively; molecular evidence places them near the base of protostome animals. The species is Not Evaluated by the IUCN, as marine zooplankton populations are rarely assessed due to monitoring challenges.