阅读理解
Scientistshavearguedforlongoverwhetherbirdsshowrealintelligence．Somescientistsbelievebirdshaveabilities(能力)includingcommunicationanddifferentkindsofmemory．Insomeunusualcasestheirabilitiesseembetterthanthoseofhumans．
IrenePepperbergabirdsexpertdidresearchaboutagreyparrotnamed．Griffin．Ms．PepperbergsaysGriffincanarrangeobjectsinorderofsize．Shesaysthetalkingbirdalsocancombinewordsintherightorder．Forexamplehewillcombinewordswhenaskingforapieceoffood．Theresearchersaysexpertshadthoughtthatonlyhumansandothermammalswithlargebrainshavetheabilitytocombineobjectsandwords．Shebelievesthatbirdbrainshavetheabilitytounderstandthatcomplex(复杂的)tasksmustbedoneinthecorrectorder．
Somebirdshaveothermemoryskills．Forexampletheycollectandstorethousandsofseedsinautumnandfindthemlaterinwinter．AlanKamilandAlanBondoftheUniversityofNebraskaarestudyingthememoriesofbirdscalledjaysandnutcrackers．Theirexperimentsshowthatthesebirdsusenaturalobjectstofindtheseedstheyhavestored．
It’ssaidsomebirdscanlearnasmanyas2000differentsongs．Songsmayhavedevelopedasawayforbirdstocommunicatewithotherbirds．
AccordingtoVernerBingmanofBowlingGreenStateUniversityinOhiobirdsmusthaveaspecialguidancesystemintheirbrain．Hesaysthatunderstandinghowabird’sbrainoperatesmayhelpusbetterunderstandhowahumanbrainprocessesinformation．
Howeversomescientistsdostillbelievebirdsdomanythingsthatappeartobeactsofthoughtfulintelligence．Inmostcasestheysaytheirbehaviorissimplyinstinctive(本能的)noreasoningpowerdirectingit．
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Theintelligenceofbirds．
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IrenePepperberg’sstudyon