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        <Explanation>GRANTS AND ASSISTANCE TO OTHER ORGANIZATIONS THE ORGANIZATION EVALUATES AND MONITORS ITS GRANTS BASED ON INFORMATION RECEIVED FROM THE GRANTEE ORGANIZATION AND OTHER PUBLIC INFORMATION. GRANTS AND OTHER ASSISTANCE TO INDIVIDUALS THE CONSERVATION INITIATIVE OF THE INDIANAPOLIS ZOO IS THE BIENNIAL INDIANAPOLIS PRIZE, THE WORLD'S LEADING AWARD FOR ANIMAL CONSERVATION. THE PRIZE IS AN AWARD GIVEN EVERY OTHER YEAR TO AN INDIVIDUAL WHO HAS MADE SIGNIFICANT STRIDES IN ANIMAL CONSERVATION EFFORTS.</Explanation>
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        <Explanation>INCLUDED IN DEFERRED COMPENSATION IS 403(B) PLAN CONTRIBUTIONS AND NONQUALIFIED DEFERRED COMPENSATION. THE AMOUNT OF 403(B) COMPENSATION INCLUDED IN SCHEDULE J, PART II, COLUMN D: MICHAEL CROWTHER $11,939 PAUL GRAYSON $ 8,843 KAREN BURNS $ 7,827 CLAUDIA WILLIS $ 7,527 ROBERT SHUMAKER $ 7,154</Explanation>
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    </IRS990ScheduleJ>
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      <ArtHistoricalTreasures />
      <ArtFractionalInterest />
      <BooksAndPublications />
      <ClothingAndHouseholdGoods />
      <CarsAndOtherVehicles />
      <BoatsAndPlanes />
      <IntellectualProperty />
      <SecuritiesPubliclyTraded>
        <NonCashCheckbox>X</NonCashCheckbox>
        <NumberOfContributions>30</NumberOfContributions>
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        <MethodOfDeterminingRevenues>MARKET VALUE</MethodOfDeterminingRevenues>
      </SecuritiesPubliclyTraded>
      <SecuritiesCloselyHeldStock />
      <SecuritiesPrtnrshpTrustIntrsts />
      <SecuritiesMiscellaneous />
      <QualifiedContribHistStruct />
      <QualifiedContribOther />
      <RealEstateResidential />
      <RealEstateCommercial />
      <RealEstateOther />
      <Collectibles />
      <FoodInventory />
      <DrugsAndMedicalSupplies />
      <Taxidermy />
      <HistoricalArtifacts />
      <ScientificSpecimens />
      <ArchaeologicalArtifacts />
      <OtherNonCashContributionsTable>
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        <Description>WINE</Description>
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        <MethodOfDeterminingRevenues>MARKET VALUE</MethodOfDeterminingRevenues>
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      <Form990ScheduleMPartII>
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        <ReturnReference>PART I, LINE 32B</ReturnReference>
        <Explanation>CITY SECURITIES IS USED TO SELL PUBLICLY TRADED STOCK.</Explanation>
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        <Explanation>THE RETURN IS REVIEWED BY A SUBCOMMITTEE OF THE FINANCE COMMITTEE OF THE BOARD OF TRUSTEES AND IT IS MADE AVAILABLE TO THE BOARD OF TRUSTEES PRIOR TO FILING. THE FORM 990 IS ALSO REVIEWED BY AN INDEPENDENT ACCOUNTING FIRM PRIOR TO FILING.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>EXPLANATION OF MONITORING AND ENFORCEMENT OF CONFLICTS</Identifier>
        <ReturnReference>FORM 990, PART VI, LINE 12C</ReturnReference>
        <Explanation>CONFLICT OF INTEREST QUESTIONNAIRE IS COMPLETED ON AN ANNUAL BASIS BY BOARD MEMBERS AND STAFF. ANNUALLY, ALL CONFLICTS OF INTEREST ARE SUMMARIZED AND REVIEWED BY THE FINANCE COMMITTEE OF THE BOARD OF TRUSTEES. IF THERE WAS A CONFLICT OF INTEREST A BOARD MEMBER WOULD RECUSE THEMSELVES FROM DISCUSSION AND VOTING.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>COMPENSATION REVIEW &amp; APPROVAL PROCESS FOR OFFICERS &amp; KEY EMPLOYEES</Identifier>
        <ReturnReference>FORM 990, PART VI, LINE 15 A and 15B</ReturnReference>
        <Explanation>COMPENSATION COMMITTEE OF THE BOARD OF TRUSTEES MEETS ANNUALLY TO REVIEW AND APPROVE THE COMPENSATION OF THE CEO, CFO, DEPUTY DIRECTOR, AND SVP EXTERNAL RELATIONS. THE LAST ANNUAL REVIEW WAS PERFORMED IN NOVEMBER OF 2012.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>OTHER ORGANIZATION DOCUMENTS PUBLICLY AVAILABLE</Identifier>
        <ReturnReference>FORM 990, PART VI, LINE 19</ReturnReference>
        <Explanation>THE ORGANIZATION'S GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY, AND FINANCIAL STATEMENTS ARE AVAILABLE UPON REQUEST.</Explanation>
      </GeneralExplanation>
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</Return>