nkind.Onemorethingtoconsideristhis:Iftimetravelispossible,thenshouldn'twenowbemeetingpeoplefromthefuture?OK,that'sitfortoday.Anyquestions?Unit7AnimalTalkTEACHER:OK,let'sgetstarted...um,ontoday'munication.I'mjustwondering...howmanyofyouhavepets?Dogs,cats,birds,...anykindofpet.Quiteafew,Isee.Inmycase,Ihaveagoldenretriever.I'dcertainlyliketothinkthatI'municatewithhim,municationarewereallyengag ingin?Actually,thisisaveryinterestingandcontroversialquestionbecause,inmanyways,it'pareanimalsandhumans.Humansareonespecies,andtherearemanyspeciesofanimals.municating,muni pletelydifferentfromwhatweuse.Forinstance, municate,someinsectsusevibrations,andbatsuseultra sonicsignals.Andthenthere'sthesenseofsmell.Eventhoughhumanstrytocovernaturalbodyodorswithsoapanddeodorantandperfume,municatingformanyanimals.
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