Nile Crocodile vs Saltwater Crocodile

Crocodylus niloticus compared with Crocodylus porosus

Taxonomic Classification

Rank	Nile Crocodile	Saltwater Crocodile
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class same	Reptilia (爬行纲)	Reptilia (爬行纲)
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

尼罗鳄是世界上最大的爬行动物之一，广泛分布于撒哈拉以南非洲地区。

Saltwater Crocodile

湾鳄(Crocodylus porosus)是现存最大的爬行动物，分布于印度东部至澳大利亚北部。