Atlantic Gray Seal vs Bittercress

Halichoerus grypus compared with Cardamine hirsuta

Key Differences

• Atlantic Gray Seal is Vulnerable while Bittercress is Least Concern.

Taxonomic Classification

Rank	Atlantic Gray Seal	Bittercress
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Mammalia (Mammals)	Magnoliopsida (Dicots)
Order	Pinnipedia (Seals & Sea Lions)	Brassicales (Brassicales)
Family	Phocidae (True Seals)	Brassicaceae
Genus	Halichoerus	Cardamine
Species	Halichoerus grypus	Cardamine hirsuta

Conservation Status

Atlantic Gray Seal

VU — Vulnerable

Bittercress

LC — Least Concern

Physical Characteristics

Attribute	Atlantic Gray Seal	Bittercress
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

Bittercress

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical grasslands and savannas, and mangrove forests and coastal wetlands, among 7 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (4 countries), Asia (6 countries), Europe (10 countries), North America (Canada, Mexico, United States), Oceania and the Pacific (Australia, Marshall Islands, Papua New Guinea), and South America (4 countries).

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.

Bittercress

The Bittercress (Cardamine hirsuta) is a species in the genus Cardamine. It is currently classified as Least Concern on the IUCN Red List. Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical grasslands and savannas, and mangrove forests and coastal wetlands, among 7 distinct biome types. Populations are also

Shared Countries

Both species can be found in 5 countries:

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