common bottlenose dolphin vs Nile Crocodile

Tursiops truncatus compared with Crocodylus niloticus

Key Differences

• Nile Crocodile is 2.5x heavier than common bottlenose dolphin.
• Nile Crocodile lives longer (70 years vs 45 years).

Taxonomic Classification

Rank	common bottlenose dolphin	Nile Crocodile
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Mammalia (mamíferos)	Reptilia (réptil)
Order	Cetacea (Whales & Dolphins)	Crocodylia (Crocodilians)
Family	Delphinidae (Oceanic Dolphins)	Crocodylidae (Crocodiles)
Genus	Tursiops (Bottlenose Dolphins)	Crocodylus (True Crocodiles)
Species	Tursiops truncatus	Crocodylus niloticus

Evolutionary Relationship

common bottlenose dolphin and Nile Crocodile share a common ancestor at the Phylum level: Chordata. (cordados)

Conservation Status

common bottlenose dolphin

LC — Least Concern

Population: ~600.0K

Trend: Stable →

Nile Crocodile

LC — Least Concern

Population: ~500.0K

Trend: Stable →

Physical Characteristics

Attribute	common bottlenose dolphin	Nile Crocodile
Diet	Carnivore	Carnivore
Average Lifespan	45 years	70 years
Average Length	3.0 m	5.0 m
Average Weight	300.0 kg	750.0 kg

Habitat & Geographic 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).

Nile Crocodile

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

Distributed across Egypt, Kenya, Madagascar, South Africa, and Tanzania.

common bottlenose dolphin

A espécie de golfinho mais estudada e reconhecida, os roazes habitam oceanos quentes e temperados de todo o mundo, desde águas costeiras rasas até ao mar aberto. Altamente inteligentes com grandes cérebros em relação ao tamanho corporal, demonstram auto-reconhecimento, comunicação complexa e aprendizagem social. Vivem em sociedades fluidas de fissão-fusão e cooperam para arrebanhar peixes. Uma espécie indicadora chave da saúde dos ecossistemas marinhos.

Nile Crocodile

O crocodilo-do-Nilo e um dos maiores repteis do mundo e e encontrado em toda a Africa subsariana.