藍鯨 vs St. James' shell

Balaenoptera musculus compared with Pecten maximus

Key Differences

• 藍鯨 is Vulnerable while St. James' shell is Least Concern.

Taxonomic Classification

Rank	藍鯨	St. James' shell
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Chordata (脊索动物门)	Mollusca (软体动物门)
Class	Mammalia (哺乳動物)	Bivalvia (双壳纲)
Order	Cetacea (Whales & Dolphins)	Pectinida (扇贝目)
Family	Balaenopteridae (Rorquals)	Pectinidae
Genus	Balaenoptera (Rorquals)	Pecten
Species	Balaenoptera musculus	Pecten maximus

Evolutionary Relationship

藍鯨 and St. James' shell share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

藍鯨

VU — Vulnerable

Population: ~15.0K

Trend: Increasing ↑

St. James' shell

LC — Least Concern

Physical Characteristics

Attribute	藍鯨	St. James' shell
Diet	Carnivore	—
Average Lifespan	90 years	—
Average Length	30.0 m	—
Average Weight	150.0 t	—

Habitat & Geographic Range

藍鯨

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 11 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Colombia, Ecuador). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

St. James' shell

Habitat

Native to Asia and Europe and South America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Asia (China), Europe (8 countries), and South America (Chile).

藍鯨

蓝鲸是地球上已知存在过的最大动物，体长可达33米，体重达200吨，其心脏单独就重达一辆小型轿车的重量。分布于各大洋，在极地觅食地和热带繁殖地之间进行迁徙。它们是滤食性动物，每日可消耗多达4吨磷虾。蓝鲸被列为濒危物种，20世纪捕鲸活动使其濒临灭绝，目前全球种群估计约为1万至2.5万头。

St. James' shell

圣雅各贝（Pecten maximus）在IUCN红色名录中被列为无危（LC）。在其分布范围内广泛分布，种群数量稳定，没有直接的保护关切。

Shared Countries

Both species can be found in 4 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden