Cinnamon antechinus vs Common Eider

Antechinus leo compared with Somateria mollissima

Key Differences

Cinnamon antechinus is Least Concern while Common Eider is Near Threatened.

Taxonomic Classification

Rank	Cinnamon antechinus	Common Eider
Kingdom same	Animalia (동물)	Animalia (동물)
Phylum same	Chordata (척삭동물)	Chordata (척삭동물)
Class	Mammalia (포유류)	Aves (새)
Order	Dasyuromorphia (주머니고양이목)	Anseriformes (기러기목)
Family	Dasyuridae	Anatidae
Genus	Antechinus	Somateria
Species	Antechinus leo	Somateria mollissima

Evolutionary Relationship

Cinnamon antechinus and Common Eider share a common ancestor at the Phylum level: Chordata. (척삭동물)

보기 Phylum: Chordata

Conservation Status

Cinnamon antechinus

LC — Least Concern

Common Eider

NT — Near Threatened

Physical Characteristics

Attribute	Cinnamon antechinus	Common Eider
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Cinnamon antechinus

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Common Eider

Habitat

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

Range

Found across Europe (5 countries) and North America (United States). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Cinnamon antechinus

The cinnamon antechinus (Antechinus leo) is a small marsupial in the family Dasyuridae, endemic to northeastern Queensland, Australia, particularly the Cape York Peninsula. It inhabits tropical and subtropical rainforest and forest margins at low elevations, sheltering in tree hollows, dense vine tangles, and fallen logs. Like all antechinuses, it is a specialist insectivore, consuming beetles, cockroaches, moths, and other invertebrates, and occasionally small lizards. The cinnamon antechinus is named for its rich cinnamon-brown dorsal fur. A remarkable feature shared by all antechinus species is semelparous reproduction: males undergo a catastrophic physiological decline and die shortly after a brief, intense mating season in winter, leaving only the pregnant females to carry the population into the next generation. This extreme reproductive strategy results in completely male-free populations for most of the year. The species is classified as Least Concern by the IUCN, with populations within Cape York's relatively intact tropical forest. However, like all antechinuses, it faces threats from feral predators (cats and foxes), habitat degradation, and altered fire regimes. Climate change poses a long-term risk by shrinking the cool, moist forest habitats this species depends on. Genetic studies of Australian antechinuses have revealed considerable cryptic diversity.