Red-billed Duck vs teat sponge

Anas erythrorhyncha compared with Polymastia mamillaris

Key Differences

• Red-billed Duck is Least Concern while teat sponge is Not Evaluated.

Taxonomic Classification

Rank	Red-billed Duck	teat sponge
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Porifera (Sponges)
Class	Aves (Birds)	Demospongiae (Demospongiae)
Order	Anseriformes (Anseriformes)	Polymastiida (Polymastiida)
Family	Anatidae	Polymastiidae
Genus	Anas	Polymastia
Species	Anas erythrorhyncha	Polymastia mamillaris

Evolutionary Relationship

Red-billed Duck and teat sponge share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Red-billed Duck

LC — Least Concern

teat sponge

NE — Not Evaluated

Physical Characteristics

Attribute	Red-billed Duck	teat sponge
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Red-billed Duck

Habitat

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

Range

Found across Europe (6 countries) and South America (Ecuador).

teat sponge

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

Red-billed Duck

Red-billed Duck (Anas erythrorhyncha) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway