Itiseasyforustotellourfriendsfromourenemies.Butcanotheranimalsdothesame?Elephantscan!Theycanusetheirsenseofvisionandsmelltotellthedifferencebetweenpeoplewhoposeathreatandthosewhodonot. InKenya,researchersfoundthatelephantsreactdifferentlytoclothingwornbymenoftheMaasaiandKambaethnicgroups.YoungMaasaimenspearanimalsandthusposeathreattoelephants;Kambamenaremainlyfarmersandarenotadangertoelephants. Inanexperimentconductedbyanimalscientists,elephantswerefirstpresentedwithcleanclothingorclothingthathadbeenwornforfivedaysbyeitheraMaasaioraKambaman.Whentheelephantsdetected(察觉)thesmellofclothingwornbyaMaasaiman,theymovedawayfromthesmellfasterandtooklongertorelaxthanwhentheydetectedthesmellsofeitherclothingwornbyKambamenorclothingthathadnotbeenwornatall. Clothingcoloralsoplaysarole,thoughinadifferentway.Inthesamestudy,whentheelephantssawredclothingnotwornbefore,theyreactedangrily,asredistypicallywornbyMaasaimen.Ratherthanrunningawayastheydidwiththesmell,theelephantsactedaggressivelytowardtheredclothing. Theresearchersbelievethattheelephants’emotionalreactionsareduetotheirdifferentinterpretationsofthesmellsandthesights.Smellingapotentialdangermeansthatathreatisnearbyandthebestthingtodoisrunawayandhide.Seeingapotentialthreatwithoutitssmellmeansthatriskislow.Therefore,insteadofshowingfearandrunningaway,theelephantsexpresstheirangerandbecomeaggressive. 小题1:Accordingtothepassage,whichofthefollowingstatementsisTRUEaboutKambaandMaasaipeople? |