Barn Fern vs Common Seal

Asplenium haughtonii compared with Phoca vitulina

Key Differences

• Barn Fern is Critically Endangered while Common Seal is Near Threatened.

Taxonomic Classification

Rank	Barn Fern	Common Seal
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Tracheophyta	Chordata (Chordates)
Class	Polypodiopsida (Polypodiopsida)	Mammalia (Mammals)
Order	Polypodiales (Polypodiales)	Pinnipedia (Seals & Sea Lions)
Family	Aspleniaceae	Phocidae (True Seals)
Genus	Asplenium	Phoca (Harbor Seals)
Species	Asplenium haughtonii	Phoca vitulina

Conservation Status

Barn Fern

CR — Critically Endangered

Common Seal

NT — Near Threatened

Population: ~500.0K

Trend: Stable →

Physical Characteristics

Attribute	Barn Fern	Common Seal
Diet	—	Carnivore
Average Lifespan	—	30 years
Average Length	—	1.7 m
Average Weight	—	80.0 kg

Habitat & Geographic Range

Barn Fern

Habitat

Typically found in moist, shaded forest floors and tropical canopies.

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.

Barn Fern

The Barn Fern (Asplenium haughtonii) is a species in the genus Asplenium. It is currently classified as Critically Endangered on the IUCN Red List. Typically found in moist, shaded forest floors and tropical canopies.

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.