Common Seal vs quill-leaf sagittaria

Phoca vitulina compared with Sagittaria teres

Key Differences

• Common Seal is Near Threatened while quill-leaf sagittaria is Extinct.

Taxonomic Classification

Rank	Common Seal	quill-leaf sagittaria
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Mammalia (Mammals)	Liliopsida (Monocots)
Order	Pinnipedia (Seals & Sea Lions)	Alismatales (Alismatales)
Family	Phocidae (True Seals)	Alismataceae
Genus	Phoca (Harbor Seals)	Sagittaria
Species	Phoca vitulina	Sagittaria teres

Conservation Status

Common Seal

NT — Near Threatened

Population: ~500.0K

Trend: Stable →

quill-leaf sagittaria

EX — Extinct

Physical Characteristics

Attribute	Common Seal	quill-leaf sagittaria
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.

quill-leaf sagittaria

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

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.