Common Seal vs lizard crystalwort

Phoca vitulina compared with Riccia bifurca

Key Differences

Common Seal is Near Threatened while lizard crystalwort is Endangered.

Taxonomic Classification

Rank	Common Seal	lizard crystalwort
Kingdom	Animalia (प्राणी)	Plantae (पादप)
Phylum	Chordata (रज्जुकी)	Marchantiophyta (liverwort)
Class	Mammalia (स्तनधारी)	Marchantiopsida (Marchantiopsida)
Order	Pinnipedia (Seals & Sea Lions)	Marchantiales (Marchantiales)
Family	Phocidae (True Seals)	Ricciaceae
Genus	Phoca (Harbor Seals)	Riccia
Species	Phoca vitulina	Riccia bifurca

Conservation Status

Common Seal

NT — Near Threatened

Population: ~500.0K

Trend: Stable →

lizard crystalwort

EN — Endangered

Physical Characteristics

Attribute	Common Seal	lizard crystalwort
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.

lizard crystalwort

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, tundra, and tropical and subtropical moist broadleaf forests spanning the Australasia and Oceanian realms.

Range

Widely distributed across Europe (5 countries), North America (United States), and Oceania and the Pacific (New Zealand). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.