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Mutualismwithseaanemonestriggeredtheadaptiveradiationofclownfishes Adaptiveradiationistheprocessbywhichasingleancestralspeciesdiversifiesintomany descendantsadaptedtoexploitawiderangeofhabitats.Theappearanceofecological opportunities,orthecolonizationoradaptationtonovelecologicalresources,hasbeen documentedtopromoteadaptiveradiationinmanyclassicexamples.Mutualisticinteractions– arelationshipthatbenefitsbothorganisms–allowspeciestoaccessresourcesuntappedby competitors,andenablespeciesdiversification. Scientistsshowedthatclownfishesexhibitpatternsthatarelikelydiagnosticofanecological adaptiveradiationfollowingtheacquisitionofthespecificabilitytointeractandlivewithsea anemones.Theobligatemutualismwithseaanemonesisthoughttobethekeyinnovationthat allowedclownfishestoradiaterapidlyinuntappedecologicalniches.Andastheclownfishes spread,theydiversifiedintonew,isolatedspecies.
