brittlestar vs Horned Grebe

Amphiura filiformis compared with Podiceps auritus

Key Differences

• brittlestar is Least Concern while Horned Grebe is Vulnerable.

Taxonomic Classification

Rank	brittlestar	Horned 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 auritus

Evolutionary Relationship

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

Conservation Status

brittlestar

LC — Least Concern

Horned Grebe

VU — Vulnerable

Physical Characteristics

Attribute	brittlestar	Horned 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.

Horned Grebe

Habitat

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

Range

Found across Europe (6 countries) and North America (United States). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Horned Grebe

Horned Grebe (Podiceps auritus) is classified as Vulnerable (VU) on the IUCN Red List. Facing a high risk of endangerment in the wild, with declining populations and increasing habitat pressure.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden