Common Brassy Ringlet vs Common Seal

Erebia cassioides compared with Phoca vitulina

Key Differences

• Common Brassy Ringlet is Least Concern while Common Seal is Near Threatened.

Taxonomic Classification

Rank	Common Brassy Ringlet	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	Nymphalidae (Brush-footed Butterflies)	Phocidae (True Seals)
Genus	Erebia	Phoca (Harbor Seals)
Species	Erebia cassioides	Phoca vitulina

Evolutionary Relationship

Common Brassy Ringlet and Common Seal share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Common Brassy Ringlet

LC — Least Concern

Common Seal

NT — Near Threatened

Population: ~500.0K

Trend: Stable →

Physical Characteristics

Attribute	Common Brassy Ringlet	Common Seal
Diet	—	Carnivore
Average Lifespan	—	30 years
Average Length	—	1.7 m
Average Weight	—	80.0 kg

Habitat & Geographic Range

Common Brassy Ringlet

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Austria, Bosnia and Herzegovina, Bulgaria, and Italy.

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.

Common Brassy Ringlet

The common brassy ringlet (<em>Erebia cassioides</em>) is a butterfly species endemic to high-altitude mountain environments of central and southern Europe, with documented occurrences in Austria, Bosnia and Herzegovina, Bulgaria, and Italy. This species typically inhabits all terrestrial and freshwater environments within its alpine range, favoring subalpine and alpine grasslands at elevations often exceeding 1,500 meters. It is classified as Least Concern on the IUCN Red List, reflecting a currently stable population status. As a member of the family Nymphalidae, the common brassy ringlet often feeds on grasses and sedges during its larval stage, while adult butterflies are typically found nectaring on alpine flowers. The species is often associated with calcareous grasslands and rocky slopes, where it can be seen flying in warm, sunny conditions during the summer months. Biological traits of this species remain poorly documented in the scientific literature.

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.