Laysan Duck vs Nile Crocodile

Anas laysanensis compared with Crocodylus niloticus

Key Differences

Laysan Duck is Critically Endangered while Nile Crocodile is Least Concern.

Taxonomic Classification

Rank	Laysan Duck	Nile Crocodile
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Reptilia (Reptiles)
Order	Anseriformes (Anseriformes)	Crocodylia (Crocodilians)
Family	Anatidae	Crocodylidae (Crocodiles)
Genus	Anas	Crocodylus (True Crocodiles)
Species	Anas laysanensis	Crocodylus niloticus

Evolutionary Relationship

Laysan Duck and Nile Crocodile share a common ancestor at the Phylum level: Chordata. (Chordates)

View Phylum: Chordata

Conservation Status

Laysan Duck

CR — Critically Endangered

Nile Crocodile

LC — Least Concern

Population: ~500.0K

Trend: Stable →

Physical Characteristics

Attribute	Laysan Duck	Nile Crocodile
Diet	—	Carnivore
Average Lifespan	—	70 years
Average Length	—	5.0 m
Average Weight	—	750.0 kg

Habitat & Geographic Range

Laysan Duck

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Belgium, France, Netherlands, Norway, and United Kingdom. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Nile Crocodile

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

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

Laysan Duck

Laysan Duck (Anas laysanensis) is classified as Critically Endangered (CR) on the IUCN Red List. Facing an extremely high risk of extinction in the wild due to severe population decline and habitat loss.