小鬚鯨 vs koala

Balaenoptera acutorostrata compared with Phascolarctos cinereus

Key Differences

• 小鬚鯨 is Least Concern while koala is Vulnerable.

Taxonomic Classification

Rank	小鬚鯨	koala
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 same	Mammalia (哺乳動物)	Mammalia (哺乳動物)
Order	Cetacea (Whales & Dolphins)	Diprotodontia (雙門齒目)
Family	Balaenopteridae (Rorquals)	Phascolarctidae (Koalas)
Genus	Balaenoptera (Rorquals)	Phascolarctos (Koalas)
Species	Balaenoptera acutorostrata	Phascolarctos cinereus

Evolutionary Relationship

小鬚鯨 and koala share a common ancestor at the Class level: Mammalia. (哺乳動物)

Conservation Status

小鬚鯨

LC — Least Concern

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	小鬚鯨	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

小鬚鯨

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), and South America (Colombia, Ecuador).

koala

Habitat

Typically found in grasslands, forests, and vegetated habitats.

Range

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

小鬚鯨

袋鲸（Berardius minimus）是一种分布于北太平洋的中等体型喙鲸，是近年来通过基因和形态学研究新认定的物种。该物种保护状态为数据缺乏（DD），其深海栖息习性使得系统性的种群调查极为困难。

koala

澳大利亚东部和东南部的标志性有袋类动物，体重最大可达15千克，为了节省低热量桉树叶食物所提供的能量，每天最多睡眠22小时。高度特化，能够处理会致大多数其他哺乳动物死亡的有毒桉树成分，拥有专门适应解毒功能的肠道微生物群。因衣原体病、栖息地开发和气候变化导致种群锐减，2022年被列为濒危物种。