Plural of commensal; organisms that live in commensal relationships, where one benefits and the other is unaffected.
Plural form of commensal, from Medieval Latin commensalis. The standard English plural adds -s to the singular form.
The ocean is full of commensals—sea anemones host clownfish, mussels attach to whale fins, and countless organisms have found ways to live alongside giants while causing them zero trouble.
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