gray wolf vs Saltwater Crocodile

Canis lupus compared with Crocodylus porosus

Key Differences

• gray wolf is Critically Endangered while Saltwater Crocodile is Least Concern.
• Saltwater Crocodile is 22.2x heavier than gray wolf.
• Saltwater Crocodile lives longer (70 years vs 13 years).

Taxonomic Classification

Rank	gray wolf	Saltwater Crocodile
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum same	Chordata (động vật có dây sống)	Chordata (động vật có dây sống)
Class	Mammalia (lớp Thú)	Reptilia (động vật bò sát)
Order	Carnivora (bộ Ăn thịt)	Crocodylia (Crocodilians)
Family	Canidae (Dogs & Wolves)	Crocodylidae (Crocodiles)
Genus	Canis (Dogs & Wolves)	Crocodylus (True Crocodiles)
Species	Canis lupus	Crocodylus porosus

Evolutionary Relationship

gray wolf and Saltwater Crocodile share a common ancestor at the Phylum level: Chordata. (động vật có dây sống)

Conservation Status

gray wolf

CR — Critically Endangered

Population: ~300.0K

Trend: Stable →

Saltwater Crocodile

LC — Least Concern

Population: ~300.0K

Trend: Stable →

Physical Characteristics

Attribute	gray wolf	Saltwater Crocodile
Diet	Carnivore	Carnivore
Average Lifespan	13 years	70 years
Average Length	1.6 m	6.0 m
Average Weight	45.0 kg	1.0 t

Habitat & Geographic Range

gray wolf

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, deserts and xeric shrublands, and tropical and subtropical dry broadleaf forests, among 13 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (Seychelles), Asia (Japan), Europe (5 countries), North America (7 countries), Oceania and the Pacific (Marshall Islands, Vanuatu), and South America (5 countries). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Saltwater Crocodile

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

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

gray wolf

The most widely distributed wild canid, gray wolves range from North America across Eurasia in diverse habitats including tundra, forests, and grasslands. Highly social animals living in family packs led by a dominant breeding pair. As keystone predators, wolves regulate prey populations and profoundly shape ecosystem structure, as demonstrated by their reintroduction in Yellowstone. Once heavily persecuted, populations are recovering in many regions.

Saltwater Crocodile

The saltwater crocodile is the largest living reptile, found from eastern India to northern Australia.