Discover 2018-03.pdf

DiscoverSCIENCE FOR THE CURIOUSPLUSMarch 2018VIKINGSWHERE CONSCIOUSNESS STARTS P.40The Secret History of theGoing Gonzo on Endangered Species P.50Revealing Hidden Galaxies P.32Invasionof the Beetles P.20BONUS ONLINE CONTENT CODE p.3Keel-billedToucanYour Panama Tour is fully guided from start to finishand all-inclusivewith all hotels,meals,activities,and two cruises on the Panama Canal.Join the smart shoppers and experienced travelers who rely on Caravan to handle all the details while you and your family enjoy a well-earned,worry-free vacationCall now for choice dates:(800)CARAVAN,visit CYour Panama Canal Tour ItineraryThe#1 In ValueFREE Brochure:(800)CARAVAN,CRainforests,Beaches&Panama Canalw/All Hotels,Meals&ActivitiesDetailed Itinerary at CaravancomDay 5.Cruise on the Chagres River to visit an Embera tribal village.Continue to your beach hotel for a relaxing two night stay on the Pacific Coast.Day 6.Free time at your beach resort.Day 7.Explore a Kuna tribal market and visit the Museum of Biodiversity.Day 8.Return with wonderful memories.Hasta la vista!CaravanPanama Canal Cruise&Tour 8-Days$1295Choose Your Guided Tour plus tax,feesGuatemala with Tikal 10 days$1395Costa Rica 9 days$1295Panama Canal Tour 8 days$1295Nova Scotia,P.E.I.10 days$1495Canadian Rockies 9 days$1795Grand Canyon,Bryce,Zion 8 days$1495California Coast,Yosemite 8 days$1595Mt.Rushmore,Yellowstone 8 days$1395New England,Fall Colors 8 days$1395Day 1.Welcome to Panama City,Panama.Day 2.Visit the ruins of Panama Viejo,and to the?.Day 3.Boat ride on Gatun Lake and the Panama Canal.Enjoy a two night stay at your resort located in the rainforest.Day 4.Unforgettable adventure as you cruise on the Panama Canal.Your small passenger vessel allows for unique close-up views of the canal locks.Gatun LocksPanama Canal Tour Hotels-Listed by Day 1,2 Panama City Marriott Courtyard 3,4 Gamboa Gamboa Rainforest Resort 5,6 Playa Bonita Westin Playa Bonita Resort 7 Panama City InterContinental MiramarPanamaGolden FrogsTMPanama Canal,Gaillard Cut“Brilliant,Affordable Pricing”Arthur Frommer,Travel EditorThree-toedSlothGamboaRainforest Resort Your TourStarts Here In Panama CityBeach Resort?Gatun Lake Boat CruiseBirdwatching andMonkey SpottingGatun LocksGuided Tours Since 1952Embera TribeVisit VillageGamboaRainforest ResortCanalCruisePanama City Panama Viejo Kuna Tribal Marketplace Museum of BiodiversityGaillard CutPedro Miguel Locks?PanamaTwo Nights2Overnight1DaystopPollera DancerTree FrogRainforestHikePanama CityMarch 2018 DISCOVER 3 Contents MARCH 2018 VOL.39,NO.2FEATURES24 The Secret History of the VikingsDNA evidence shows theres more to these notable northerners than sailing,trading and conquering.BY GEMMA TARLACH32 Taking a Dim ViewAstronomers look past shiny galaxies to the faint ones,which have their own intrigue.BY ADAM HADHAZY40 Down the Rabbit HoleAn anesthesiologist develops a fringe theory about quantum physics and consciousness.Now,his work is catching the ear of some serious neuroscientists.BY STEVE VOLK50 Where Wild Things ArentA writer and illustrator go gonzo over animals on the endangered species list.BY CERI LEVY AND RALPH STEADMANRALPH STEADMANEndangered animals are given the“Ralphschach test”in the new book Critical Critters,written by Ceri Levy and illustrated by the legendary Ralph Steadman.Read an excerpt beginning on page 50.Website access code:DSD1803 Enter this code at:www.DiscoverM to gain access to exclusive subscriber content.ContentsPLUSMarch 2018VIKINGSWHERE CONSCIOUSNESS STARTS P.40DiscoverSCIENCE FOR THE CURIOUSThe Secret History of theGoing Gonzo on Endangered Species P.50Revealing Hidden Galaxies P.32Invasionof the Beetles P.204 DISCOVERMAGAZINE.COMCOLUMNS&DEPARTMENTS6 EDITORS NOTEBeneath the SurfaceAdvances in science reveal mysteries that have eluded researchers for years.16 VITAL SIGNSNo Easy FixThanks to gastric bypass surgery,a woman loses a dramatic amount of weight.So why,three years later,are the pounds gradually returning?BY DOUGLAS G.ADLER20 NOTES FROM EARTHThe Beetle,the Bird and the Tamarisk TreeIn the American Southwest,two non-native species impact a native bird,for better and for worse.BY KATHERINE MAST66 PROGNOSISQuest for a Peaceful DeathA physician digs deep for the connection between the physical and the spiritual in end-of-life patients.BY JEFF WHEELWRIGHT9 THE CRUX An anthropologist designs a cost-efficient spacesuit;experts debate whether or not to finish your antibiotic prescription;and more.70 HISTORY LESSONSA Deadly DietDiarrhea,rashes,dementia and sometimes even death:All symptoms of a mysterious disease that swept the South in the early 20th century,until one doctor found an unlikely remedy.BY KRISTIN BAIRD RATTINI 74 20 THINGS YOU DIDNT KNOW ABOUT EnginesWhat do catapults,black holes and panda poop have in common?BY GEMMA TARLACH MICROSTOCKER2/123RFON THE COVERCover illustration by Shane RebenschiedWhere Consciousness Starts p.40The Secret History of the Vikings p.24Revealing Hidden Galaxies p.32In