00:0000:0000:00 A Dragonfly Mystery, Deformed Mammoths, and Why Dark Pigeons Rule Cities A Dragonfly Mystery, Deformed Mammoths, and Why Dark Pigeons Rule Cities Saturn-Like Rings Spotted Around AsteroidResearchers have discovered Saturn-like rings around an icy asteroid far from our sun called Chariklo. This is the first time we’ve found rings around anything in our solar system other than a giant planet. At present, it’s not clear how Chariklo’s ring system formed, but the discovery may help us better us understand how rings behave and evolve. Did Inbreeding Doom the Mammoth?Sign up for our daily newsletterGet more great content like this delivered right to you!Country *AfghanistanAland IslandsAlbaniaAlgeriaAndorraAngolaAnguillaAntarcticaAntigua and BarbudaArgentinaArmeniaArubaAustraliaAustriaAzerbaijanBahamasBahrainBangladeshBarbadosBelarusBelgiumBelizeBeninBermudaBhutanBolivia, Plurinational State ofBonaire, Sint Eustatius and SabaBosnia and HerzegovinaBotswanaBouvet IslandBrazilBritish Indian Ocean TerritoryBrunei DarussalamBulgariaBurkina FasoBurundiCambodiaCameroonCanadaCape VerdeCayman IslandsCentral African RepublicChadChileChinaChristmas IslandCocos (Keeling) IslandsColombiaComorosCongoCongo, The Democratic Republic of theCook IslandsCosta RicaCote D’IvoireCroatiaCubaCuraçaoCyprusCzech RepublicDenmarkDjiboutiDominicaDominican RepublicEcuadorEgyptEl SalvadorEquatorial GuineaEritreaEstoniaEthiopiaFalkland Islands (Malvinas)Faroe IslandsFijiFinlandFranceFrench GuianaFrench PolynesiaFrench Southern TerritoriesGabonGambiaGeorgiaGermanyGhanaGibraltarGreeceGreenlandGrenadaGuadeloupeGuatemalaGuernseyGuineaGuinea-BissauGuyanaHaitiHeard Island and Mcdonald IslandsHoly See (Vatican City State)HondurasHong KongHungaryIcelandIndiaIndonesiaIran, Islamic Republic ofIraqIrelandIsle of ManIsraelItalyJamaicaJapanJerseyJordanKazakhstanKenyaKiribatiKorea, Democratic People’s Republic ofKorea, Republic ofKuwaitKyrgyzstanLao People’s Democratic RepublicLatviaLebanonLesothoLiberiaLibyan Arab JamahiriyaLiechtensteinLithuaniaLuxembourgMacaoMacedonia, The Former Yugoslav Republic ofMadagascarMalawiMalaysiaMaldivesMaliMaltaMartiniqueMauritaniaMauritiusMayotteMexicoMoldova, Republic ofMonacoMongoliaMontenegroMontserratMoroccoMozambiqueMyanmarNamibiaNauruNepalNetherlandsNew CaledoniaNew ZealandNicaraguaNigerNigeriaNiueNorfolk IslandNorwayOmanPakistanPalestinianPanamaPapua New GuineaParaguayPeruPhilippinesPitcairnPolandPortugalQatarReunionRomaniaRussian FederationRWANDASaint Barthélemy Saint Helena, Ascension and Tristan da CunhaSaint Kitts and NevisSaint LuciaSaint Martin (French part)Saint Pierre and MiquelonSaint Vincent and the GrenadinesSamoaSan MarinoSao Tome and PrincipeSaudi ArabiaSenegalSerbiaSeychellesSierra LeoneSingaporeSint Maarten (Dutch part)SlovakiaSloveniaSolomon IslandsSomaliaSouth AfricaSouth Georgia and the South Sandwich IslandsSouth SudanSpainSri LankaSudanSurinameSvalbard and Jan MayenSwazilandSwedenSwitzerlandSyrian Arab RepublicTaiwanTajikistanTanzania, United Republic ofThailandTimor-LesteTogoTokelauTongaTrinidad and TobagoTunisiaTurkeyTurkmenistanTurks and Caicos IslandsTuvaluUgandaUkraineUnited Arab EmiratesUnited KingdomUnited StatesUruguayUzbekistanVanuatuVenezuela, Bolivarian Republic ofVietnamVirgin Islands, BritishWallis and FutunaWestern SaharaYemenZambiaZimbabweI also wish to receive emails from AAAS/Science and Science advertisers, including information on products, services and special offers which may include but are not limited to news, careers information & upcoming events.Required fields are included by an asterisk(*)When we think about the mammoth, we don’t imagine genetically deformed creatures stumbling through a doomed landscape, going to desperate lengths to stay alive in a rapidly changing world. But maybe we should: An unusual feature on some mammoth fossils dredged from the North Sea suggests that inbreeding may have hastened the mammoth’s extinction 10,000 years ago.Intensive Day Care May Improve Long-Term Health of Poor ChildrenEarly childhood intervention may improve the long-term health of poor children. That’s the conclusion of a study, launched in 1972, tracking the effect of an intensive day care program on low-income kids. The results suggest that it is possible to prevent conditions such as obesity and heart disease in the poor.Scientists Fix Errors in Controversial Paper About Saturated FatsOn 17 March, a paper made headlines around the world for questioning whether unsaturated fats are really healthier than saturated fats, debunking a cornerstone of many dietary guidelines. But a new version of the publication had to be posted shortly after it first appeared to correct several errors. Now, a number of scientists are criticizing the paper and even calling on the authors to retract it.Warming World Shrinks SalamandersSalamanders are displaying one of the fastest responses to climate change on record. As temperatures in their habitats have risen over just the past 50 years, salamanders have gotten smaller. The discovery is the first confirmation that climate change can alter body size—and helps us understand another way it will affect the world as we know it.Spacecraft Returns Seven Particles From Birth of the Solar SystemAfter a massive, years-long search, researchers have recovered seven interstellar dust particles from the birth of our solar system. The whole sample weighs just a few trillionths of a gram, but it’s the first time scientists have laid their hands on primordial material unaltered by the violent birth of the solar system.