Common Seal vs white-headed langur

Phoca vitulina compared with Trachypithecus poliocephalus

Key Differences

• Common Seal is Near Threatened while white-headed langur is Critically Endangered.

Taxonomic Classification

Rank	Common Seal	white-headed langur
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class same	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order	Pinnipedia (Seals & Sea Lions)	Primates (อันดับวานร)
Family	Phocidae (True Seals)	Cercopithecidae (Old World Monkeys)
Genus	Phoca (Harbor Seals)	Trachypithecus
Species	Phoca vitulina	Trachypithecus poliocephalus

Evolutionary Relationship

Common Seal and white-headed langur share a common ancestor at the Class level: Mammalia. (สัตว์เลี้ยงลูกด้วยน้ำนม)

Conservation Status

Common Seal

NT — Near Threatened

Population: ~500.0K

Trend: Stable →

white-headed langur

CR — Critically Endangered

Physical Characteristics

Attribute	Common Seal	white-headed langur
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.

white-headed langur

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.