Bornean orangutan vs koala

Pongo pygmaeus compared with Phascolarctos cinereus

Key Differences

• Bornean orangutan is Critically Endangered while koala is Vulnerable.
• Bornean orangutan is omnivore while koala is herbivore.
• Bornean orangutan is 7.5x heavier than koala.
• Bornean orangutan lives longer (35 years vs 15 years).

Taxonomic Classification

Rank	Bornean orangutan	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	Primates (灵长目)	Diprotodontia (雙門齒目)
Family	Hominidae (Great Apes)	Phascolarctidae (Koalas)
Genus	Pongo (Orangutans)	Phascolarctos (Koalas)
Species	Pongo pygmaeus	Phascolarctos cinereus

Evolutionary Relationship

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

Conservation Status

Bornean orangutan

CR — Critically Endangered

Population: ~104.7K

Trend: Decreasing ↓

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Bornean orangutan	koala
Diet	Omnivore	Herbivore
Average Lifespan	35 years	15 years
Average Length	1.4 m	75 cm
Average Weight	75.0 kg	10.0 kg

Habitat & Geographic Range

Bornean orangutan

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 5 distinct biome types spanning the Australasia and Indomalayan realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Indonesia and Malaysia. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Bornean orangutan

婆罗洲猩猩是世界上最大的树栖哺乳动物，体重可达90公斤，一生大部分时间在婆罗洲的雨林树冠中度过。它们独居、半游牧，在树上筑夜间休息巢，以果实、叶片和无脊椎动物为食。由于棕榈油扩张导致的森林砍伐和非法狩猎，其种群在过去60年间减少了50%以上，被列为极度濒危物种。

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。