Black-bellied Clusterfly vs Common Seal

Pollenia amentaria compared with Phoca vitulina

Key Differences

• Black-bellied Clusterfly is Least Concern while Common Seal is Near Threatened.

Taxonomic Classification

Rank	Black-bellied Clusterfly	Common Seal
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Diptera (Diptera)	Pinnipedia (Seals & Sea Lions)
Family	Polleniidae	Phocidae (True Seals)
Genus	Pollenia	Phoca (Harbor Seals)
Species	Pollenia amentaria	Phoca vitulina

Evolutionary Relationship

Black-bellied Clusterfly and Common Seal share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Black-bellied Clusterfly

LC — Least Concern

Common Seal

NT — Near Threatened

Population: ~500.0K

Trend: Stable →

Physical Characteristics

Attribute	Black-bellied Clusterfly	Common Seal
Diet	—	Carnivore
Average Lifespan	—	30 years
Average Length	—	1.7 m
Average Weight	—	80.0 kg

Habitat & Geographic Range

Black-bellied Clusterfly

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Denmark, Norway, and Sweden.

Common Seal

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

Found across Europe (7 countries) and North America (United States). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Black-bellied Clusterfly

The Black-bellied Clusterfly (Pollenia amentaria) is a species in the genus Pollenia. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Common Seal

The most widely distributed pinniped, harbor seals inhabit temperate and subarctic coastal waters of both the North Atlantic and North Pacific. Adults reach up to 130 kg and spend roughly equal time at sea hunting fish, squid, and crustaceans and hauling out on beaches or rocks to rest. Their large, expressive eyes are adapted for underwater vision in low light. Harbor seals are a critical food source for orcas, sharks, and polar bears.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden