Bagwhale vs sea thread hydroid

Balaenoptera acutorostrata compared with Obelia dichotoma

Key Differences

• Bagwhale is Least Concern while sea thread hydroid is Not Evaluated.

Taxonomic Classification

Rank	Bagwhale	sea thread hydroid
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Cnidaria (Cnidarians)
Class	Mammalia (Mammals)	Hydrozoa (Hydrozoa)
Order	Cetacea (Whales & Dolphins)	Leptothecata (Leptothecata)
Family	Balaenopteridae (Rorquals)	Campanulariidae
Genus	Balaenoptera (Rorquals)	Obelia
Species	Balaenoptera acutorostrata	Obelia dichotoma

Evolutionary Relationship

Bagwhale and sea thread hydroid share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Bagwhale

LC — Least Concern

sea thread hydroid

NE — Not Evaluated

Physical Characteristics

Attribute	Bagwhale	sea thread hydroid
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bagwhale

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), and South America (Colombia, Ecuador).

sea thread hydroid

Habitat

Native to Africa and Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Africa (South Africa), Europe (5 countries), North America (Canada, Mexico, United States), Oceania and the Pacific (Australia), and South America (Argentina, Chile).

Bagwhale

Bagwhale (Balaenoptera acutorostrata) 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 5 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden