Coral reef

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

Class

Notion

Domain

Science and technology

In collections

1 player has it in their collection.

What Wikipedia says

A coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. Most coral reefs are built from stony corals, whose polyps cluster in groups.

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

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