Arctic Sulfur vs Atlantic Gray Seal

Colias palaeno compared with Halichoerus grypus

Key Differences

• Arctic Sulfur is Least Concern while Atlantic Gray Seal is Vulnerable.

Taxonomic Classification

Rank	Arctic Sulfur	Atlantic Gray 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	Pieridae	Phocidae (True Seals)
Genus	Colias	Halichoerus
Species	Colias palaeno	Halichoerus grypus

Evolutionary Relationship

Arctic Sulfur and Atlantic Gray Seal share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Arctic Sulfur

LC — Least Concern

Atlantic Gray Seal

VU — Vulnerable

Physical Characteristics

Attribute	Arctic Sulfur	Atlantic Gray Seal
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arctic Sulfur

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (24 countries).

Atlantic Gray Seal

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Belgium, Denmark, Norway, Portugal, and Sweden. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Arctic Sulfur

Arctic Sulfur (Colias palaeno) 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.

Atlantic Gray Seal

The Atlantic Gray Seal (Halichoerus grypus) is a species in the genus Halichoerus. It is currently classified as Vulnerable on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden