Polar bear vs 灰蓝粗嘴雀

Ursus maritimus compared with Saltator grossus

Key Differences

Polar bear is Vulnerable while 灰蓝粗嘴雀 is Least Concern.

Taxonomic Classification

Rank	Polar bear	灰蓝粗嘴雀
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class	Mammalia (哺乳動物)	Aves (鳥綱)
Order	Carnivora (食肉目)	Passeriformes (雀形目)
Family	Ursidae (Bears)	Thraupidae
Genus	Ursus (Bears)	Saltator
Species	Ursus maritimus	Saltator grossus

Evolutionary Relationship

Polar bear and 灰蓝粗嘴雀 share a common ancestor at the Phylum level: Chordata. (脊索动物门)

查看 Phylum: Chordata

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

灰蓝粗嘴雀

LC — Least Concern

Physical Characteristics

Attribute	Polar bear	灰蓝粗嘴雀
Diet	Carnivore	—
Average Lifespan	25 years	—
Average Length	2.4 m	—
Average Weight	450.0 kg	—

Habitat & Geographic Range

Polar bear

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

灰蓝粗嘴雀

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Polar bear

北极熊是地球上最大的陆地食肉动物，体重可超过700千克，分布于从加拿大到俄罗斯的北极海冰区。是高度特化的海洋哺乳动物，依赖海冰捕猎环斑海豹和髯海豹。是优秀的游泳者，能够横渡广阔的开阔水域。被列为易危种，因气候变化导致北极海冰迅速减少，种群正受到严重威胁。

灰蓝粗嘴雀

一种栖息于亚马逊盆地、中美洲和南美洲北部潮湿低地森林的大型厚嘴食籽鸟，全身羽毛呈均匀的深板岩灰色，具有强壮的淡色喙。尽管名为灰色大嘴雀，但其实被归入Saltator属。栖息于茂密的湿润森林内部和林缘，成对或小群觅食大型种子和坚硬果实。其强大的喙能裂开大多数其他鸟类无法处理的坚硬种子。在IUCN红色名录中被列为无危物种。