Asiatic elephant vs common bottlenose dolphin

Elephas maximus compared with Tursiops truncatus

Key Differences

• Asiatic elephant is Endangered while common bottlenose dolphin is Least Concern.
• Asiatic elephant is herbivore while common bottlenose dolphin is carnivore.
• Asiatic elephant is 13.3x heavier than common bottlenose dolphin.
• Asiatic elephant lives longer (60 years vs 45 years).

Taxonomic Classification

Rank	Asiatic elephant	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	Proboscidea (ゾウ目)	Cetacea (Whales & Dolphins)
Family	Elephantidae (Elephants)	Delphinidae (Oceanic Dolphins)
Genus	Elephas (Asian Elephants)	Tursiops (Bottlenose Dolphins)
Species	Elephas maximus	Tursiops truncatus

Evolutionary Relationship

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

Conservation Status

Asiatic elephant

EN — Endangered

Population: ~50.0K

Trend: Decreasing ↓

common bottlenose dolphin

LC — Least Concern

Population: ~600.0K

Trend: Stable →

Physical Characteristics

Attribute	Asiatic elephant	common bottlenose dolphin
Diet	Herbivore	Carnivore
Average Lifespan	60 years	45 years
Average Length	5.5 m	3.0 m
Average Weight	4.0 t	300.0 kg

Habitat & Geographic Range

Asiatic elephant

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

Range

Distributed across India, Indonesia, Myanmar, Sri Lanka, and Thailand. Currently classified as 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).

Asiatic elephant

アジアゾウ（Elephas maximus）はアフリカゾウに比べて小型で、インドから東南アジア・インドネシアに至る森林・草原に生息する。アフリカゾウより小さな耳・丸みのある背・鼻先の1本の指状突起などの形態的特徴を持ち、アジアの文化・宗教と深く結びついており、古来より使役動物・神事に用いられてきた。IUCNレッドリストでは絶滅危惧（EN）に分類されており、野生の個体数は5万頭を下回る。

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。