Big-eared opossum vs Crested Shelduck

Didelphis aurita compared with Tadorna cristata

Key Differences

• Big-eared opossum is Least Concern while Crested Shelduck is Critically Endangered.

Taxonomic Classification

Rank	Big-eared opossum	Crested Shelduck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Didelphimorphia (Didelphimorphia)	Anseriformes (Anseriformes)
Family	Didelphidae	Anatidae
Genus	Didelphis	Tadorna
Species	Didelphis aurita	Tadorna cristata

Evolutionary Relationship

Big-eared opossum and Crested Shelduck share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Big-eared opossum

LC — Least Concern

Crested Shelduck

CR — Critically Endangered

Physical Characteristics

Attribute	Big-eared opossum	Crested Shelduck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Big-eared opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Crested Shelduck

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found in Norway. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Big-eared opossum

The Big-eared opossum (Didelphis aurita) is a species in the genus Didelphis. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.