简介：SecretsoftheDinosaurMummyconcerns“Leonardo,”aremarkablywell-preservedjuvenileBrachylophosaurusthatlived77millionyearsago,duringthelateCretaceousperiod.DiscoveredinMontanain2000,Leonardoisprettymuchintact,althoughtheprocessofpetrificationhasamplifiedhispresumedweightof2,000poundsintoafullsixtons.　　SecretshastheusualCGIinterludesofroamingherdsofBrachylophosauruses,butitsmainfocusisonthetechniquesusedtoexploreLeonardo’sviscera.Sincetherewasnoquestionofcrackingthefossilopentorevealitsinsides,theresearchteam–ledbyroguepaleontologistRobertBakker–hadtorelyonincreasinglypowerfulimagingtechniques.　　It’samusingtoseetheheavyarmamentthat’swheeledin:first,high-intensityX-rays,thenevenmorepowerfulgammarays,thenablastofcobaltradiationatNASA’sJohnsonSpaceCenter.Sowhatdothesescansaccomplish?Well,it’snotgivinganythingawaytorevealthat,yes,scientistshavebeenabletoobserveanatomicaldetailsinLeonardo’smummythathavenotyetbeenseeninanyotherdinosaurfossils.ItseemsthatLeonardohadabird-likecropinitsneck,amoreextensivebeakthanpreviouslyrealized,andanintricatearrayofdifferent-sizedscalesonitshead,back,underbellyandlegs.　　TheresearchteamwasalsoabletodeterminehowLeonardodied,andwhatheateinthelastfewdaysbeforehemethisdemise.Infact,thislastnuggetofinformationmaybethemostimportantofall,sincethepollenandleavesfoundinLeonardo’sgutprovidevaluableinformationabouttheecosystemofthewesternUnitedStatesinthelateCretaceous.…