Hydractinia

Rarity: Common

The most frequent rarity: most Wikipedia articles become Commons.

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At a glance

Class

Figure

Domain

Nature

Knowledge cost

3

Influence

4

Resistance

4

In collections

Nobody has pulled it yet.

What Wikipedia says

Hydractinia is a genus of commensal athecate hydroids which belong to the family Hydractiniidae. Hydractinia species mostly live on hermit-crabbed marine gastropod shells.

Excerpt from the Wikipedia article “Hydractinia”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Seascapeza, CC BY-SA 3.0, via Wikimedia Commons.