Bamboo bear vs Bornean orangutan

Ailuropoda melanoleuca compared with Pongo pygmaeus

Key Differences

• Bamboo bear is Vulnerable while Bornean orangutan is Critically Endangered.
• Bamboo bear is herbivore while Bornean orangutan is omnivore.
• Bornean orangutan lives longer (35 years vs 20 years).

Taxonomic Classification

Rank	Bamboo bear	Bornean orangutan
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class same	Mammalia (哺乳類)	Mammalia (哺乳類)
Order	Carnivora (ネコ目)	Primates (サル目)
Family	Ursidae (Bears)	Hominidae (Great Apes)
Genus	Ailuropoda (Giant Pandas)	Pongo (Orangutans)
Species	Ailuropoda melanoleuca	Pongo pygmaeus

Evolutionary Relationship

Bamboo bear and Bornean orangutan share a common ancestor at the Class level: Mammalia. (哺乳類)

Conservation Status

Bamboo bear

VU — Vulnerable

Population: ~1.9K

Trend: Increasing ↑

Bornean orangutan

CR — Critically Endangered

Population: ~104.7K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Bamboo bear	Bornean orangutan
Diet	Herbivore	Omnivore
Average Lifespan	20 years	35 years
Average Length	1.5 m	1.4 m
Average Weight	100.0 kg	75.0 kg

Habitat & Geographic Range

Bamboo bear

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, temperate coniferous forests, and temperate broadleaf and mixed forests, among 7 distinct biome types spanning the Indomalayan and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

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

Bamboo bear

ジャイアントパンダ（Ailuropoda melanoleuca）は中国中部の山岳竹林に生息し、体重最大125キログラムになるクマ科の動物で、食肉目に分類されながら食事の99%を竹が占める特異な食性を持つ。偽の親指（橈側種子骨）を使って竹の茎を把握し、1日14時間もの採食時間を費やす。2016年にIUCNレッドリストで絶滅危惧から危急（VU）へ改善されており、保護繁殖プログラムと自然保護区の設置が個体数回復に貢献している。

Bornean orangutan

世界最大の樹上性哺乳類であるボルネオオランウータン（Pongo pygmaeus）は最大90kgの体重でボルネオ島の熱帯雨林の林冠で生涯のほとんどを過ごします。単独生活をする半遊牧的な動物で、木に夜間の睡眠巣を作り、果実、葉、無脊椎動物を採食します。パーム油拡大による森林伐採と密猟により、過去60年で個体数が50%以上減少した深刻な絶滅危惧（CR）種です。