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Yourwebbrowser(Safari7)isoutofdate.Formoresecurity,comfortand thebestexperienceonthissite: Updateyourbrowser Ignore VideoMediaSpotlight WolvesofYellowstone HowdoeswolfreintroductionbenefitEarth'snaturalsystems? Forthecompletevideowithmediaresources,visit: http://nationalgeographic.org/media/wolves-yellowstone/ GraywolveswerereintroducedintoYellowstoneNationalParkin1995,resultingin atrophiccascadethroughtheentireecosystem.Afterthewolvesweredriven extinctintheregionnearly100yearsago,scientistsbegantofullyunderstand theirroleinthefoodwebasakeystonespecies. Vocabulary Term Partof Speech conservation noun ecology noun foodweb noun reintroduce verb Definition managementofanaturalresourcetoprevent exploitation,destruction,orneglect. branchofbiologythatstudiestherelationshipbetween livingorganismsandtheirenvironment. allrelatedfoodchainsinanecosystem.Alsocalleda foodcycle. toreturnmembersofaspeciestotheirhistoricalrange. Yellowstone largenationalparkintheU.S.statesofWyoming,Idaho, noun NationalPark andMontana. Articles&Profiles NationalGeographicNews:Wolves'LeftoversAreYellowstone'sGain,Study Says Reference NationalGeographicEducation:GrowingUpWolf NationalGeographic:Animals—Wolves 1of2 Websites AnimalFactFile:GrayWolf ©1996–2017NationalGeographicSociety.Allrightsreserved. 2of2
