Common Seal vs Crescent Map Lichen

Phoca vitulina compared with Rhizocarpon lecanorinum

Key Differences

• Common Seal is Near Threatened while Crescent Map Lichen is Least Concern.

Taxonomic Classification

Rank	Common Seal	Crescent Map Lichen
Kingdom	Animalia (动物界)	Fungi (真菌界)
Phylum	Chordata (脊索动物门)	Ascomycota (子囊菌门)
Class	Mammalia (哺乳動物)	Lecanoromycetes (茶漬綱)
Order	Pinnipedia (Seals & Sea Lions)	Rhizocarpales (地图衣目)
Family	Phocidae (True Seals)	Rhizocarpaceae
Genus	Phoca (Harbor Seals)	Rhizocarpon
Species	Phoca vitulina	Rhizocarpon lecanorinum

Conservation Status

Common Seal

NT — Near Threatened

Population: ~500.0K

Trend: Stable →

Crescent Map Lichen

LC — Least Concern

Physical Characteristics

Attribute	Common Seal	Crescent Map Lichen
Diet	Carnivore	—
Average Lifespan	30 years	—
Average Length	1.7 m	—
Average Weight	80.0 kg	—

Habitat & Geographic Range

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.

Crescent Map Lichen

Habitat

Native to Europe and North America and South America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Colombia, Denmark, Norway, Sweden, and United States.

Common Seal

分布最广的鳍足类动物港海豹（Phoca vitulina）栖居于北大西洋和北太平洋温带及亚北极沿海水域。成体体重可达130千克，在海中捕食鱼类、鱿鱼和甲壳动物，并在沙滩或礁岩上休息，两者时间大致相当。大而富有表情的眼睛适应于弱光下的水下视觉。港海豹是虎鲸、鲨鱼和北极熊的重要食物来源。

Shared Countries

Both species can be found in 4 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States