Bornean orangutan vs common bottlenose dolphin

Pongo pygmaeus compared with Tursiops truncatus

Key Differences

• Bornean orangutan is Critically Endangered while common bottlenose dolphin is Least Concern.
• Bornean orangutan is omnivore while common bottlenose dolphin is carnivore.
• common bottlenose dolphin is 4.0x heavier than Bornean orangutan.
• common bottlenose dolphin lives longer (45 years vs 35 years).

Taxonomic Classification

Rank	Bornean orangutan	common bottlenose dolphin
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	Primates (サル目)	Cetacea (Whales & Dolphins)
Family	Hominidae (Great Apes)	Delphinidae (Oceanic Dolphins)
Genus	Pongo (Orangutans)	Tursiops (Bottlenose Dolphins)
Species	Pongo pygmaeus	Tursiops truncatus

Evolutionary Relationship

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

Conservation Status

Bornean orangutan

CR — Critically Endangered

Population: ~104.7K

Trend: Decreasing ↓

common bottlenose dolphin

LC — Least Concern

Population: ~600.0K

Trend: Stable →

Physical Characteristics

Attribute	Bornean orangutan	common bottlenose dolphin
Diet	Omnivore	Carnivore
Average Lifespan	35 years	45 years
Average Length	1.4 m	3.0 m
Average Weight	75.0 kg	300.0 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.

common bottlenose dolphin

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 12 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), and South America (Colombia, Ecuador, Venezuela).

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。

common bottlenose dolphin

最も研究され、最も知られているイルカ種であるバンドウイルカは、沿岸の浅瀬から外洋まで世界中の温暖な海域と温帯海域に生息します。体に対して大きな脳を持つ高度に知性的なこの種は、自己認識、複雑なコミュニケーション、社会的学習を示します。流動的な分裂融合社会で生活し、魚を追い込むために協力します。海洋生態系の健全性の重要な指標種です。