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        <BookValue>1</BookValue>
      </OtherAssets>
      <OtherAssets>
        <Description>BENEFICIAL INTEREST IN PERPETUAL TRUST</Description>
        <BookValue>2309417</BookValue>
      </OtherAssets>
      <TotalBookValueOtherAssets>2309418</TotalBookValueOtherAssets>
      <OtherLiabilities>
        <Description>LINE OF CREDIT</Description>
        <Amount>65000</Amount>
      </OtherLiabilities>
      <OtherLiabilities>
        <Description>CAPITAL LEASE OBLIGATION</Description>
        <Amount>103242</Amount>
      </OtherLiabilities>
      <TotalOfAmounts>168242</TotalOfAmounts>
      <TotalRevenue>13426163</TotalRevenue>
      <TotalExpenses>12598823</TotalExpenses>
      <ExcessOrDeficitForYear>827340</ExcessOrDeficitForYear>
      <NetUnrealizedGLOnInvestments>-483702</NetUnrealizedGLOnInvestments>
      <TotalAdjustments>-483702</TotalAdjustments>
      <ExcessOrDeficitPerFS>343638</ExcessOrDeficitPerFS>
      <TotRevenueEtcAuditedFinclStmt>13062628</TotRevenueEtcAuditedFinclStmt>
      <NetUnrealizedGainsInvestments>-483702</NetUnrealizedGainsInvestments>
      <OtherRevenues>120167</OtherRevenues>
      <RevenueNotRptdF990>-363535</RevenueNotRptdF990>
      <RevenueSubtotal>13426163</RevenueSubtotal>
      <TotalRevenuePerForm990>13426163</TotalRevenuePerForm990>
      <TotExpensesEtcAuditedFinclStmt>12718990</TotExpensesEtcAuditedFinclStmt>
      <OtherExpensesIncluded>120167</OtherExpensesIncluded>
      <ExpensesNotRptdF990>120167</ExpensesNotRptdF990>
      <ExpensesSubtotal>12598823</ExpensesSubtotal>
      <TotalExpensesPerForm990>12598823</TotalExpensesPerForm990>
      <Form990ScheduleDPartXIV>
        <Identifier>Part X</Identifier>
        <ReturnReference>Part X : FIN48 Footnote</ReturnReference>
        <Explanation>The Museum, a California not-for-profit corporation, is exempt from taxes under Section 501(c)(3) of the Internal Revenue Code and Section 23701(d) of the State Revenue and Taxation Code. The Financial Accounting Standards Board (FASB) issued Accounting Standards Codification No. 740-10, Accounting for Uncertainties in Income Tax, which sets a minimum threshold for financial statement recognition of the benefit of a tax position taken or expected to be taken in a tax return. The Museum has reviewed its positions for all open tax years and has determined that no provision for income tax positions is required.</Explanation>
      </Form990ScheduleDPartXIV>
      <Form990ScheduleDPartXIV>
        <Identifier>Part XIII, Line 2d</Identifier>
        <ReturnReference>Part XIII, Line 2d: Other expenses and losses per audited F/S</ReturnReference>
        <Explanation>COST OF GOODS SOLD $120167</Explanation>
      </Form990ScheduleDPartXIV>
      <Form990ScheduleDPartXIV>
        <Identifier>Part XII, Line 2d</Identifier>
        <ReturnReference>Part XII, Line 2d: Other revenue amounts included in F/S but not included on form 990</ReturnReference>
        <Explanation>cost of goods sold $120167</Explanation>
      </Form990ScheduleDPartXIV>
      <Form990ScheduleDPartXIV>
        <Identifier>Part V, Line 4</Identifier>
        <ReturnReference>Part V, Line 4: Intended uses of the endowment fund.</ReturnReference>
        <Explanation>THE MUSEUM'S ENDOWMENT FUNDS ARE RESTRICTED TO USE PER THE REQUEST OF THE DONORS. A LARGE PORTION OF THE FUNDS ARE RESTRICTED TO SUPPORT THE MUSEUM'S SCIENTIFIC RESEARCH AND RELATED COLLECTIONS.</Explanation>
      </Form990ScheduleDPartXIV>
      <Form990ScheduleDPartXIV>
        <Identifier>Part III, Line 4</Identifier>
        <ReturnReference>Part III, Line 4: Description of organization's collections and how it furthers its purpose.</ReturnReference>
        <Explanation>THE MUSEUM'S COLLECTIONS TOTAL APPROXIMATELY 7.3 MILLION SPECIMENS, SOME DATING FROM THE 1870'S. THE COLLECTIONS AND RELATED RESEARCH ARE CENTERED AROUND THE SOUTHERN CALIFORNIA/BAJA REGION. THE COLLECTIONS REPRESENT A RICH AND VITAL SOURCE FOR INVESTIGATIONS IN MANY OF THE FUNDAMENTAL ARENAS OF MODERN BIOLOGICAL SCIENCES, SUCH AS CLIMATE CHANGE, EVOLUTION, BIODIVERSITY AND ECOLOGY.</Explanation>
      </Form990ScheduleDPartXIV>
      <Form990ScheduleDPartXIV>
        <Identifier>Part III, Line 1a</Identifier>
        <ReturnReference>Part III, Line 1a: If organization elected under SFAS 116 to not report are, historical treasures, o</ReturnReference>
        <Explanation>THE MUSEUM HOUSES OVER SEVEN MILLION NATURAL HISTORY SPECIMENS IN COLLECTIONS DATING BACK AS FAR AS THE 1870S. THE SPECIMENS INCLUDE PLANTS, BIRDS, MAMMALS, INSECTS, REPTILES, AMPHIBIANS, MARINE INVERTEBRATES, FOSSILS, AND MINERALS MAINLY FROM WESTERN UNITED STATES, BAJA CALIFORNIA, AND NORTHERN MEXICO. IN ADDITION, THE MUSEUM'S LIBRARY INCLUDES SOME 25,000 TITLES IN 90,000 VOLUMES WITH SEVERAL SIGNIFICANT AND RARE VOLUMES ON NATURAL HISTORY. THE MUSEUM'S COLLECTIONS ARE EXPENSED WHEN ACQUIRED.</Explanation>
      </Form990ScheduleDPartXIV>
    </IRS990ScheduleD>
    <IRS990ScheduleF documentId="IRS990ScheduleF" softwareId="11000144" softwareVersion="2011v1.5">
      <AcctsActvsOutUSTable>
        <Region>MEXICO</Region>
        <NumberOfOffices>0</NumberOfOffices>
        <NumberOfEmployees>0</NumberOfEmployees>
        <TypeOfActivitiesConducted>PROGRAM SERVICE</TypeOfActivitiesConducted>
        <SpecificServicesProvided>RESEARCH &amp; TRAINING</SpecificServicesProvided>
        <TotalExpenditures>3930</TotalExpenditures>
      </AcctsActvsOutUSTable>
      <SubtotalAmountSpent>3930</SubtotalAmountSpent>
      <TotalAmountSpent>3930</TotalAmountSpent>
      <GrantsToOrgsOutsideUS>
        <Region>NORTH AMERICA</Region>
        <PurposeOfGrant>RESEARCH</PurposeOfGrant>
        <AmountOfCashGrant>3930</AmountOfCashGrant>
        <MannerOfCashDisbursement>WIRES &amp; CHECKS</MannerOfCashDisbursement>
        <MethodOfValuation>FMV</MethodOfValuation>
      </GrantsToOrgsOutsideUS>
      <TotalNumberOfOtherOrgs>3</TotalNumberOfOtherOrgs>
      <TransferToForeignCorp>false</TransferToForeignCorp>
      <InterestInForeignTrust>false</InterestInForeignTrust>
      <OwnForeignCorp>false</OwnForeignCorp>
      <PassiveForeignInvestCo>false</PassiveForeignInvestCo>
      <ForeignPartnership>false</ForeignPartnership>
      <BoycottCountries>false</BoycottCountries>
    </IRS990ScheduleF>
    <IRS990ScheduleJ documentId="IRS990ScheduleJ" softwareId="11000144" softwareVersion="2011v1.5">
      <CompensationCommittee>X</CompensationCommittee>
      <Form990OfOtherOrganizations>X</Form990OfOtherOrganizations>
      <WrittenEmploymentContract>X</WrittenEmploymentContract>
      <CompensationSurvey>X</CompensationSurvey>
      <BoardOrCommitteeApproval>X</BoardOrCommitteeApproval>
      <SeverancePayment>false</SeverancePayment>
      <SupplementalNonqualRetirePlan>true</SupplementalNonqualRetirePlan>
      <EquityBasedCompArrangement>false</EquityBasedCompArrangement>
      <CompBasedOnRevenueOfFilingOrg>false</CompBasedOnRevenueOfFilingOrg>
      <CompBasedOnRevenueRelatedOrgs>false</CompBasedOnRevenueRelatedOrgs>
      <CompBasedNetEarningsFilingOrg>false</CompBasedNetEarningsFilingOrg>
      <CompBasedNetEarningsRelateOrgs>false</CompBasedNetEarningsRelateOrgs>
      <AnyNonFixedPayments>false</AnyNonFixedPayments>
      <InitialContractException>false</InitialContractException>
      <RebuttablePresumptionProcedure>false</RebuttablePresumptionProcedure>
      <Form990ScheduleJPartII>
        <NamePerson>michael hager</NamePerson>
        <BaseCompensationFilingOrg>150976</BaseCompensationFilingOrg>
        <DeferredCompFilingOrg>74000</DeferredCompFilingOrg>
        <NontaxableBenefitsFilingOrg>10018</NontaxableBenefitsFilingOrg>
        <TotalCompensationFilingOrg>234994</TotalCompensationFilingOrg>
      </Form990ScheduleJPartII>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="IRS990ScheduleO" softwareId="11000144" softwareVersion="2011v1.5">
      <GeneralExplanation>
        <Identifier>Form 990, Part VI, Line 19</Identifier>
        <ReturnReference>Form 990, Part VI, Line 19: Other Organization Documents Publicly Available</ReturnReference>
        <Explanation>MADE AVAILABLE BOTH UPON REUEST AND ON THE MUSEUM'S PUBLIC WEBSITE.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>Form 990, Part VI, Line 12c</Identifier>
        <ReturnReference>Form 990, Part VI, Line 12c: Explanation of Monitoring and Enforcement of Conflicts</ReturnReference>
        <Explanation>ALL BOARD DIRECTORS ARE REQUIRED TO ANNUALLY REVIEW, SIGN AND SUBMIT A COPY OF THE MUSEUM'S CONFLICT OF INTEREST POLICY AND DISCLOSE ANY CONFLICTS THEY MAY HAVE.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>Form 990, Part VI, Line 11</Identifier>
        <ReturnReference>Form 990, Part VI, Line 11: Form 990 Review Process</ReturnReference>
        <Explanation>SUBMITTED TO THE FINANCE COMMITTEE OF BOARD FOR REVIEW AND COMMENT, THEN FORWARDED TO THE FULL BOARD SUBSEQUENT TO THE REVIEW OF THE FINANCE COMMITTEE.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>Form 990, Part VI, Line 6</Identifier>
        <ReturnReference>Form 990, Part VI, Line 6: Explanation of Classes of Members or Shareholder</ReturnReference>
        <Explanation>MEMBERS MEET ANNUALLY TO VOTE ON ANY CHANGES TO BY-LAWS AND TO ELECT BOARD OFFICERS FOR THE COMING YEAR.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>Form 990, Part III, Line 4d</Identifier>
        <ReturnReference>Form 990, Part III, Line 4d : Other Program Services Description</ReturnReference>
        <Explanation>OTHER PROGRAM SERVICES 4: PUBLIC PROGRAMS: INFORMAL EDUCATION PROGRAMS SUCH AS CLASSES, LECTURES, FIELD TRIPS, AND EXPEDITIONS THAT PROMOTE LIFELONG LEARNING IN THE FIELD OF NATURAL SCIENCES.</Explanation>
      </GeneralExplanation>
    </IRS990ScheduleO>
  </ReturnData>
</Return>