Leech

Rarity: Rare

A topic known well beyond its field, found in many languages.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

At a glance

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Nature

Knowledge cost

6

Influence

12

Resistance

9

In collections

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What Wikipedia says

Leeches are segmented parasitic or predatory worms that comprise the subclass Hirudinea within the phylum Annelida. They are closely related to the oligochaetes, which include the earthworm, and like them have soft, muscular segmented bodies that can lengthen and contract.

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

Image: Shizhao, CC BY-SA 2.5, via Wikimedia Commons.