Cay Sua vs Common Seal

Alstonia scholaris compared with Phoca vitulina

Key Differences

Cay Sua is Least Concern while Common Seal is Near Threatened.

Taxonomic Classification

Rank	Cay Sua	Common Seal
Kingdom	Plantae (thực vật)	Animalia (động vật)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (động vật có dây sống)
Class	Magnoliopsida (Dicots)	Mammalia (lớp Thú)
Order	Gentianales (Bộ Long đởm)	Pinnipedia (Seals & Sea Lions)
Family	Apocynaceae	Phocidae (True Seals)
Genus	Alstonia	Phoca (Harbor Seals)
Species	Alstonia scholaris	Phoca vitulina

Conservation Status

Cay Sua

LC — Least Concern

Common Seal

NT — Near Threatened

Population: ~500.0K

Trend: Stable →

Physical Characteristics

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

Habitat & Geographic Range

Cay Sua

Habitat

Inhabits tropical and subtropical moist broadleaf forests and tropical and subtropical dry broadleaf forests within the Oceanian biogeographic realm.

Range

Distributed across Micronesia, Taiwan, and United States.

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.

Cay Sua

The Blackboard Tree (Alstonia scholaris) is a species in the genus Alstonia. It is currently classified as Least Concern on the IUCN Red List. Inhabits tropical and subtropical moist broadleaf forests and tropical and subtropical dry broadleaf forests within the Oceanian biogeographic realm.

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.