Polar bear vs 彩须尖嘴蜂鸟

Ursus maritimus compared with Chalcostigma herrani

Key Differences

Polar bear is Vulnerable while 彩须尖嘴蜂鸟 is Least Concern.

Taxonomic Classification

Rank	Polar bear	彩须尖嘴蜂鸟
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)	Apodiformes (雨燕目)
Family	Ursidae (Bears)	Trochilidae
Genus	Ursus (Bears)	Chalcostigma
Species	Ursus maritimus	Chalcostigma herrani

Evolutionary Relationship

Polar bear and 彩须尖嘴蜂鸟 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 ↓

彩须尖嘴蜂鸟

LC — Least Concern

Physical Characteristics

Attribute	Polar bear	彩须尖嘴蜂鸟
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.

彩须尖嘴蜂鸟

Habitat

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

Range

Distributed across Colombia, Ecuador, and Norway.

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。

彩须尖嘴蜂鸟

虹须刺嘴蜂鸟（Chalcostigma herrani）是命名最为绚丽的蜂鸟之一，具有独特的长而多彩的喉垂，从绿色到蓝色再到紫色渐变，形成独特的胡须状图案。栖息于哥伦比亚、委内瑞拉、厄瓜多尔和秘鲁海拔3200至4500米的开阔帕拉莫草地和灌木丛中。是海拔最高的蜂鸟之一，以低矮帕拉莫花卉为食，通过夜间蛰伏适应零下的夜间气温。