Nile Crocodile vs Saltwater Crocodile

Crocodylus niloticus compared with Crocodylus porosus

Taxonomic Classification

Rank	Nile Crocodile	Saltwater Crocodile
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class same	Reptilia (爬虫類)	Reptilia (爬虫類)
Order same	Crocodylia (Crocodilians)	Crocodylia (Crocodilians)
Family same	Crocodylidae (Crocodiles)	Crocodylidae (Crocodiles)
Genus same	Crocodylus (True Crocodiles)	Crocodylus (True Crocodiles)
Species	Crocodylus niloticus	Crocodylus porosus

Evolutionary Relationship

Nile Crocodile and Saltwater Crocodile share a common ancestor at the Genus level: Crocodylus. (True Crocodiles)

Conservation Status

Nile Crocodile

LC — Least Concern

Population: ~500.0K

Trend: Stable →

Saltwater Crocodile

LC — Least Concern

Population: ~300.0K

Trend: Stable →

Physical Characteristics

Attribute	Nile Crocodile	Saltwater Crocodile
Diet	Carnivore	Carnivore
Average Lifespan	70 years	70 years
Average Length	5.0 m	6.0 m
Average Weight	750.0 kg	1.0 t

Habitat & Geographic Range

Nile Crocodile

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

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

Saltwater Crocodile

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

Distributed across Australia, India, Indonesia, Malaysia, and Philippines.

Nile Crocodile

ナイルワニは世界最大の爬虫類の一つで、サハラ以南のアフリカ全域に生息する。

Saltwater Crocodile

イリエワニ(Crocodylus porosus)は現存する最大の爬虫類で、インド東部からオーストラリア北部にかけて分布する。