LeonardoARENAISSANCEMANFORTHE21STCENTURYTHEHOTZONEPREMIERESMONDAY,MAY27,AT9/8C,ONNATIONALGEOGRAPHIC05.2019FURTHERMAY2019ModernGirls,AncientRiteAvillageinSpainwelcomesspringthesamewayithasforcenturies,byplacingafewchosengirlsonflowerypedestals.PHOTOGRAPHSBYDANIELOCHOADEOLZAPROOFEMBARKEXPLORE8BASICINSTINCTSToads’SexLifeHingesonFindingthePerfectPoolTheirchoosinessmayendangerthem.BYPATRICIAEDMONDSTHROUGHTHELENSFindingDignityinaDirtyJobBayakouperformanessentialservicethattheyhidefromotherHaitians.BYANDREABRUCEALSOElectricSpidersAFarrier’sToolsMeltingMountRainierOntheCoverThe500thanniversaryofLeonardodaVinci’sdeathisbringingrenewedatten-tiontohisnotebooks—andtheartistry,curiosity,andgeniustheycontain.ILLUSTRATION:RICCARDOVECCHIOIMPRINTSCONTENTSALSOAstronautBrainsChina’sScienceBoomWhat’sKeepingScientistsFromVanquishingEbola?Fourreasonsthattheextremelylethalvirusissohardtofight.BYRICHARDPRESTON1734THEBIGIDEATheFutureofDyinginStyleWememorializethedeadwiththetoolsofourtimes.BYGLENNMCDONALDFEATURESLeonardo’sEnduringBrillianceFivehundredyearsafterhisdeath,Leo-nardodaVinci’sstun-ningcreativityandforesightinscience,thearts,andengineer-ingcontinuetoamazeus—andtoinformmod-ernworkinthefieldshestudiedsolongago.BYCLAUDIAKALBPHOTOGRAPHSBYPAOLOWOODSANDGABRIELEGALIMBERTI.......................................P.56ANewDayinMozambiqueGorongosaNationalParkrecoversfromwar.BYDAVIDQUAMMENPHOTOGRAPHSBYCHARLIEHAMILTONJAMES......................................P.94SmokejumpersTheseelitecrewspara-chuteintoforeststokeepsmallfiresfrombecomingmajorones.BYMARKJENKINSPHOTOGRAPHSBYMARKTHIESSEN......P.120SeaofPlasticPlasticwastewashesintotheoceansatanaveragerateofaboutninemilliontonsayear.Muchofiteventuallybreaksdownintobarelyvisiblebits—microplastics,whicharesoabundantthatlarvalfishareeatingthemintheirfirstdaysoflife.BYLAURAPARKERPHOTOGRAPHSBYDAVIDLIITTSCHWAGER......................................P.42NATIONALGEOGRAPHIC(ISSN0027-9358)PUBLISHEDMONTHLYBYNATIONALGEOGRAPHICPARTNERS,LLC,114517THS...