Schwertwal vs Weißer Opalwurm

Orcinus orca compared with Nephtys cirrosa

Key Differences

• Schwertwal is Data Deficient while Weißer Opalwurm is Least Concern.

Taxonomic Classification

Rank	Schwertwal	Weißer Opalwurm
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum	Chordata (Chordatiere)	Annelida (Ringelwürmer)
Class	Mammalia (Säugetiere)	Polychaeta (Vielborster)
Order	Cetacea (Whales & Dolphins)	Phyllodocida (Phyllodocida)
Family	Delphinidae (Oceanic Dolphins)	Nephtyidae
Genus	Orcinus (Orcas)	Nephtys
Species	Orcinus orca	Nephtys cirrosa

Evolutionary Relationship

Schwertwal and Weißer Opalwurm share a common ancestor at the Kingdom level: Animalia. (Tier)

Conservation Status

Schwertwal

DD — Data Deficient

Population: ~50.0K

Trend: Unknown ?

Weißer Opalwurm

LC — Least Concern

Physical Characteristics

Attribute	Schwertwal	Weißer Opalwurm
Diet	Carnivore	—
Average Lifespan	50 years	—
Average Length	8.0 m	—
Average Weight	5.4 t	—

Habitat & Geographic Range

Schwertwal

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 11 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Colombia, Ecuador, Venezuela).

Weißer Opalwurm

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

Schwertwal

The largest member of the dolphin family, orcas reach up to 9 meters and 6 tonnes and are found in every ocean from Arctic to Antarctic. Apex predators living in matrilineal pods with distinct dialects, hunting strategies, and cultural traditions that differ between populations. Some populations specialize in fish, others in marine mammals. No natural predators; orcas sit at the top of every marine food chain they inhabit.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden