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MycolleaguesandIdiscussour work.
AskingMoreQuestions
Afterdocumentingtheplants,weturnedourattentiontoamuchmoredifficultquestion:Wheredidthismedicinalknowledgecomefrom?IknewthatinancientIndia,wholebookswerewrittenabouthowtocareforelephants.But,manyoftheplantswelearnedaboutfromtheKarenwerenotinthosebooks.Wastheknowledgeofhowtousetheseplantscomingfromhumanmedicine,whichpeoplethenappliedto elephants?
Afterinterviewingthemahoutsfurther,welearnedthatmanyoftheseplantsareusedforpeopleinthesamewaythattheyareusedfortheelephants.Theplantsusedtotreatelephanteyeinfectionsandcataracts,forexample,werethesameremediesusedforeyeinfectionsandcataractsinpeople.Infact,therewasasurprisingoverlap:Fifty‑fivepercentoftheelephantmedicineshadthesameuseforpeople!Itseemedclearthatmuchoftheveterinaryknowledgewascomingfromhuman medicine.
Yet,despitethisclearconnection,thereseemedtobeanothersourceofknowledge—theelephantsthemselves!Severaloftheelephantmedicinalplantsdidn’thaveanyusesinhumanmedicine.Andmanymedicinalplantsweresoughtoutby elephants.
Mahoutsreportedthat84percentoftheseplantswereeatenbyelephantswhentheywerefreetochoosetheirowndietintheforest.So,theelephantswereindependentlyeatingmanyofthesemedicines.Didtheyknowthattheseplantsweremedicinal?Wasitpossiblethattheymightbeeatingsomeoftheseplantsbecausetheyweremedicinal,thesamewaythatwesometimeseatthingsbecauseweknowtheyaregoodforour health?
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Weidentifyandlabeleachspecimen,suchasthisplantusedtotreatelephants'broken bones.
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anelephanteatingplantsinthe wild
GoingFurther
Toprovescientificallythatelephantseatmedicinalplantsonpurposewouldbechallenging.Itwouldrequirefeedingobservations,healthassessments,andlaboratoryanalysis.But,theKarenmahoutsweren’tinterestedinhavingtheirknowledgescientificallyvalidated.Aftergenerationsofobservingelephantsinthejungle,manyofthembelievedthattheelephantsdideatspecificplantstotreatspecific problems.
Karenmahoutsreported19plantspeciesthatwereusedbytheelephantsthemselvestotreatconstipation,indigestion,orintestinalparasites.Theyfoundplantstostrengthentheirteethandtoincreasemilkproductionaftergivingbirth.Quiteafewoftheseplantswerethesameonesusedbythemahoutswhentheypreparedmedicineforthe elephants!
Thingswerebecomingclearer.Manyofthemedicinesusedtotreatelephantshadcomefirstfromhumanmedicine.But,someplantswereusedbytheelephantsfirst.Onlylaterdidpeopleobservethisandstarttogatherthem.Othermedicineswereusedinbothhumanmedicineandelephantdiets,soitwashardtotelliftheyoriginatedfromhumanknowledge,elephantknowledge,or both.
LearningFromOthers
Inourhuman-centeredworld,itcanbehardtorememberthatotherspecieshavetheirownknowledge,whichsometimescanbeevengreaterthanourown.Welearnedhowtobuilddamsfrombeavers.Wesawhowtosurvivethecoldfromfur-bearinganimals.Wecopytheshapesofairplanesfrombirds.Awholebranchofdesigncalled“biomimicry”isdevotedtousingtheformsandprocessesofnaturetodesignnewhuman technologies.
IntheforestsofSoutheastAsia,KarenmahoutshavelivedalongsideAsianelephantsforsolongthattheyhaveborrowedfromelephantknowledge.Likesomanyotheranimals,elephantsseemtohaveadetailedknowledgeoftheplantsthey consume.
Thenexttimeyouseeyourdogorcatchewupstrangeplantsintheyard,watchclosely,andaskyourself:“Dotheyknowwhatthey’redoing?”Maybe.Therearemanythingsaboutevenourclosestanimalcompanionsthatwedon’tyetknow.Thereismuchtobe discovered!
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I'mexcitedabouttheworkwe'vedonesofarandlookforwardtothe work ahead.
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