Broad-blotch Drill vs Common Seal

Dichrorampha alpinana compared with Phoca vitulina

Key Differences

Broad-blotch Drill is Least Concern while Common Seal is Near Threatened.

Taxonomic Classification

Rank	Broad-blotch Drill	Common Seal
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Lepidoptera (Butterflies & Moths)	Pinnipedia (Seals & Sea Lions)
Family	Tortricidae	Phocidae (True Seals)
Genus	Dichrorampha	Phoca (Harbor Seals)
Species	Dichrorampha alpinana	Phoca vitulina

Evolutionary Relationship

Broad-blotch Drill and Common Seal share a common ancestor at the Kingdom level: Animalia. (Animals)

View Kingdom: Animalia

Conservation Status

Broad-blotch Drill

LC — Least Concern

Common Seal

NT — Near Threatened

Population: ~500.0K

Trend: Stable →

Physical Characteristics

Attribute	Broad-blotch Drill	Common Seal
Diet	—	Carnivore
Average Lifespan	—	30 years
Average Length	—	1.7 m
Average Weight	—	80.0 kg

Habitat & Geographic Range

Broad-blotch Drill

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, 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.

Broad-blotch Drill

The Broad-blotch Drill (Dichrorampha alpinana) is a species in the genus Dichrorampha. 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.