虎鯨 vs koala

Orcinus orca compared with Phascolarctos cinereus

Key Differences

• 虎鯨 is Data Deficient while koala is Vulnerable.
• 虎鯨 is carnivore while koala is herbivore.
• 虎鯨 is 540.0x heavier than koala.
• 虎鯨 lives longer (50 years vs 15 years).

Taxonomic Classification

Rank	虎鯨	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	Delphinidae (Oceanic Dolphins)	Phascolarctidae (Koalas)
Genus	Orcinus (Orcas)	Phascolarctos (Koalas)
Species	Orcinus orca	Phascolarctos cinereus

Evolutionary Relationship

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

Conservation Status

虎鯨

DD — Data Deficient

Population: ~50.0K

Trend: Unknown ?

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	虎鯨	koala
Diet	Carnivore	Herbivore
Average Lifespan	50 years	15 years
Average Length	8.0 m	75 cm
Average Weight	5.4 t	10.0 kg

Habitat & Geographic Range

虎鯨

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, Venezuela).

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.

虎鯨

作为海豚科体型最大的成员，虎鲸（Orcinus orca）体长可达9米，体重6吨，分布于从北极到南极的所有海洋。以母系群体生活的顶级捕食者，不同种群具有独特的方言、狩猎策略和文化传统。一些种群专门捕食鱼类，另一些则捕食海洋哺乳动物。没有天敌，虎鲸位于其所栖居的每条海洋食物链的顶端。

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。