Chichibu Birch vs Common Seal

Betula chichibuensis compared with Phoca vitulina

Key Differences

• Chichibu Birch is Critically Endangered while Common Seal is Near Threatened.

Taxonomic Classification

Rank	Chichibu Birch	Common Seal
Kingdom	Plantae (植物)	Animalia (动物界)
Phylum	Magnoliophyta (木兰植物门)	Chordata (脊索动物门)
Class	Magnoliopsida (木兰纲)	Mammalia (哺乳動物)
Order	Fagales (壳斗目)	Pinnipedia (Seals & Sea Lions)
Family	Betulaceae	Phocidae (True Seals)
Genus	Betula	Phoca (Harbor Seals)
Species	Betula chichibuensis	Phoca vitulina

Conservation Status

Chichibu Birch

CR — Critically Endangered

Common Seal

NT — Near Threatened

Population: ~500.0K

Trend: Stable →

Physical Characteristics

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

Habitat & Geographic Range

Chichibu Birch

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

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.

Chichibu Birch

The Chichibu Birch (Betula chichibuensis) is a species in the genus Betula. It is currently classified as Critically Endangered on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Common Seal

分布最广的鳍足类动物港海豹（Phoca vitulina）栖居于北大西洋和北太平洋温带及亚北极沿海水域。成体体重可达130千克，在海中捕食鱼类、鱿鱼和甲壳动物，并在沙滩或礁岩上休息，两者时间大致相当。大而富有表情的眼睛适应于弱光下的水下视觉。港海豹是虎鲸、鲨鱼和北极熊的重要食物来源。