Changeable Rock-moss vs Common Seal

Andreaea mutabilis compared with Phoca vitulina

Key Differences

Changeable Rock-moss is Not Evaluated while Common Seal is Near Threatened.

Taxonomic Classification

Rank	Changeable Rock-moss	Common Seal
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Bryophyta	Chordata (Chordates)
Class	Andreaeopsida (Andreaeopsida)	Mammalia (Mammals)
Order	Andreaeales (Andreaeales)	Pinnipedia (Seals & Sea Lions)
Family	Andreaeaceae	Phocidae (True Seals)
Genus	Andreaea	Phoca (Harbor Seals)
Species	Andreaea mutabilis	Phoca vitulina

Conservation Status

Changeable Rock-moss

NE — Not Evaluated

Common Seal

NT — Near Threatened

Population: ~500.0K

Trend: Stable →

Physical Characteristics

Attribute	Changeable Rock-moss	Common Seal
Diet	—	Carnivore
Average Lifespan	—	30 years
Average Length	—	1.7 m
Average Weight	—	80.0 kg

Habitat & Geographic Range

Changeable Rock-moss

Habitat

Native to Asia and Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway, Sweden, and Taiwan.

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.

Changeable Rock-moss

The Changeable Rock-moss (Andreaea mutabilis) is a species in the genus Andreaea. Native to Asia and Europe, inhabiting ecosystems characteristic of the region.

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.