brittlestar vs Red-Necked Grebe

Amphiura filiformis compared with Podiceps grisegena

Key Differences

• brittlestar is Least Concern while Red-Necked Grebe is Not Evaluated.

Taxonomic Classification

Rank	brittlestar	Red-Necked Grebe
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Echinodermata (Echinoderms)	Chordata (Chordates)
Class	Ophiuroidea (Ophiuroidea)	Aves (Birds)
Order	Amphilepidida (Amphilepidida)	Podicipediformes (Podicipediformes)
Family	Amphiuridae	Podicipedidae
Genus	Amphiura	Podiceps
Species	Amphiura filiformis	Podiceps grisegena

Evolutionary Relationship

brittlestar and Red-Necked Grebe share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

brittlestar

LC — Least Concern

Red-Necked Grebe

NE — Not Evaluated

Physical Characteristics

Attribute	brittlestar	Red-Necked Grebe
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

brittlestar

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

Red-Necked Grebe

Habitat

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

Range

Found across Europe (5 countries) and North America (United States).

brittlestar

The Brittlestar (Amphiura filiformis) is a species in the genus Amphiura. It is currently classified as Least Concern on the IUCN Red List. Native to Europe, inhabiting ecosystems characteristic of the region.

Red-Necked Grebe

Red-Necked Grebe (Podiceps grisegena) is classified as Not Evaluated (NE) on the IUCN Red List. Not yet evaluated against IUCN Red List criteria. Conservation status remains to be determined.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden