Aub lub qhov ntswg yog qhov zoo tshaj qhov peb paub. Lawv siv lawv lub qhov ntswg los taug kev thiab txiav txim siab ntau txog lawv qhov chaw nyob ib puag ncig. Tib neeg tau tso siab rau cov ntxhiab tsw zoo kawg-nrhiav peev xwm ntawm tus dev lub qhov ntswg rau ntau pua xyoo rau kev taug qab, saib xyuas, thiab txheeb xyuas. Tsis tas li ntawd, cov dev muaj lub cim xeeb tsis txaus ntseeg, thiab lawv siv qhov no kom paub txog tib neeg. Tus dev lub peev xwm khaws cov ntxhiab yog qhov muaj zog tiag tiag.
Muaj tseeb tiag nrog lub hwj chim zoo li ntawd, tsis muaj dab tsi faus tuaj yeem tsis pom. Yog li cas qhov tob hauv av tuaj yeem ua rau lawv lub qhov ntswg muaj zog tuaj yeem hnov tsw tsw?Dab tuaj yeem khaws tau tus ntxhiab los ntawm 40 ko taw hauv qab av, tab sis qee yam cuam tshuam rau qhov deb npaum li cas lawv tuaj yeem hnov qab.
Cia peb saib lub zog zoo kawg ntawm tus dev lub qhov ntswg.
Dab Tsi Zoo Li Cas?
Aub qhov hnov tsw zoo dua rau peb. Cov dev muab kwv yees li 30% ntawm lawv lub hlwb muaj peev xwm ua kom hnov tsw kev paub thiab kev txheeb xyuas, thaum tib neeg mob siab rau 5% ntawm lawv lub hlwb muaj peev xwm rau qhov hnov tsw1Lawv qhov hnov tsw yog 100,000 zaug zoo dua tib neeg, thiab muab qhov ntawd tso rau hauv qhov kev xav, Dr. Napier hais tias, "Nws yog qhov rhiab heev uas [cov dev tuaj yeem pom qhov sib npaug ntawm 1/2 teaspoon suab thaj hauv lub pas dej da dej Olympic."2
Lawv lub qhov ntswg yog qhov zoo kawg nkaus uas lawv tuaj yeem hnov tsw nyias los ntawm txhua lub qhov ntswg thiab yuav siv cov ntxhiab tsw ntawm txhua lub qhov ntswg los txiav txim seb qhov tsw nyob qhov twg.
Tus dev lub qhov ntswg muaj lub peev xwm tshwj xeeb los cais cov pa tawm ntawm qhov tsw, thaum tib neeg lub qhov ntswg hnov tsw thiab ua pa tib lub sijhawm. Qhov no ua rau kom paub qhov txawv cov ntxhiab tsw rau cov dev yooj yim dua. Lawv kuj muaj lub cev tshwj xeeb hu ua vomeronasal organ, uas muab rau lawv nrog qhov hnov tsw thib ob, yog li hais, uas yog tsim los rau kev sib txuas lus tshuaj. Cov hlab ntsha ntawm lub cev vomeronasal txuas ncaj qha mus rau lub hlwb thiab tsis teb rau cov ntxhiab tsw li niaj zaus.
Qhov tseeb, cov paj hlwb no teb rau ntau yam tshuaj, ntau yam uas tsis muaj ntxhiab. Nws ua haujlwm txhawm rau txheeb xyuas cov pheromones rau kev yug me nyuam thiab txhim kho qhov hnov tsw ntawm cov menyuam dev kom lawv txheeb xyuas qhov chaw ntawm lawv niam cov kua mis yooj yim.
How Far Dogs Smell?
Tam sim no peb paub tias tus aub qhov hnov tsw tsw zoo kawg li, tab sis lawv hnov ntau npaum li cas?
Dog tuaj yeem tshawb pom cov kev hloov pauv hauv cov ntxhiab tsw molecule nyob rau lub sijhawm luv. Los ntawm sniffing av, taug qab cov dev tuaj yeem txheeb xyuas qhov kev taw qhia tus neeg lossis tsiaj tau ploj mus. Cov dev tseem tuaj yeem ntes tib neeg cov ntiv tes uas muaj hnub nyoog ib lub lim tiam!
Dab tuaj yeem ntes tau cov ntxhiab tsw uas muaj nyob rau 5-14 hnub, thiab qee cov bloodhounds tuaj yeem ua raws cov ntxhiab tsw qab mus txog 130 mais. Cov xwm txheej ib puag ncig cuam tshuam qhov kev ncua deb ntawm tus dev tuaj yeem khaws tau tus ntxhiab, thiab qee tus dev, xws li bloodhounds, tau nce siab dua hauv kev taug qab cov ntxhiab tsw zoo li lawv tau kawm ua li ntawd.
Cua ceev thiab kev taw qhia, qhov kub thiab txias, thiab huab cua cuam tshuam npaum li cas tus dev tuaj yeem hnov qab. Thaum qhov kub thiab txias, cov dev tuaj yeem pom nws nyuaj rau taug qab cov ntxhiab tsw, tab sis thaum av txias dua huab cua, lawv tuaj yeem taug qab cov ntxhiab tsw yooj yim dua. Lub teeb nag tuaj yeem txhim kho tus dev tus ntxhiab, thaum nag hnyav tuaj yeem ua rau ntxhiab tsw qab nyuaj dua. Lawm, cua yuav nqa cov ntxhiab tsw, yog li cua kev taw qhia kuj yuav cuam tshuam npaum li cas tus dev tuaj yeem khaws cov ntxhiab.
Ib tug aub kawm tuaj yeem ntes tau tus ntxhiab ntawm 50-500 puas yards deb, nyob ntawm huab cua. Txawm li cas los xij, ib puas yards kuj tseem nyob deb dhau yog tias huab cua tsis zoo. Nyob rau hnub cua daj cua dub, tej zaum tus dev tuaj yeem hnov tus neeg nce siab ntawm 40 yards deb.
Nyob deb npaum li cas tus dev thiaj tsw tsw lwj?
Tus dev lub qhov ntswg tuaj yeem ntes cov ntxhiab tsw li 40 ko taw hauv av thiab ntau li 80 ko taw hauv qab dej. Ib tus dev uas tau kawm zoo tuaj yeem ntes cov ntxhiab tsw txawm tias mus txog 15 feet ntawm cov pob zeb tuab.
Ib tug dev cadaver lossis Human Remains Detection (HRD) aub tuaj yeem tshawb pom cov ntxhiab tsw ntawm qhov tob hauv av nyob ntawm seb hom av, nws qhov aeration, thiab muaj cov cag ntoo hauv av. HRD dev tuaj yeem ntes cov ntxhiab tsw tsis yog hauv lub cev nkaus xwb tab sis kuj nyob rau hauv cov pob txha, cov ntshav tawg, thiab cov seem uas cremated. Lawv tseem tuaj yeem ntes tus ntxhiab tsw ntawm lub cev tom qab tshem tawm ntawm lub hleb.
Dab tuaj yeem ntes tau cov ntxhiab tsw li ntawm ob peb feeb ntawm kev tuag lossis ntau xyoo tom qab. Qee qhov kev tshawb fawb tau qhia tias HRD dev tau pom 25-xyoo-laus cov seem faus rau hauv thaj tsam 300 los ntawm 150-ko taw.
Kuv puas tuaj yeem ntsuas tus dev qhov hnov tsw?
Yog tias koj muaj laj thawj rau faus ib yam hauv av, tej zaum cov pob txha los ntawm kev noj hmo ua ntej, hamster tuag lossis tsiaj ua liaj ua teb, lossis txhua yam uas yuav tawm tsw, koj tus dev yuav hnov nws thiab yuav khawb nws. nce. Lawv kuj tuaj yeem hnov cov kab tsuag xws li moles thiab nas, uas yuav txhawb kom lawv khawb koj lub vaj.
Hmoov tsis zoo rau koj tus dev, lawv lub siab xav hnov tsw yog ib qho koob hmoov thiab foom phem. Muaj cov ntxhiab tsw uas dev ntxub, uas yuav pab tiv thaiv koj tus dev, tab sis qhov no tsis yog txoj hauv kev kom lawv tsis txhob khawb cov pob txha qaib qub.
Thaum peb feem coob nyiam cov tshuaj tsw qab tshiab xws li rosemary thiab mint, koj tus dev yuav pom lawv ua phem. Kev cog tshuaj ntsuab lossis siv cov roj tseem ceeb hauv thaj chaw koj tsis xav kom lawv khawb tuaj yeem cuam tshuam koj tus dev.
Kua cider vinegar thiab dawb vinegar yog ob qho tib si tsis muaj tshuaj lom thiab siv dav hauv ntau tsev neeg. Vim tias cov dev feem ntau tsis nyiam cov ntxhiab tsw muaj zog, txau ib ncig ntawm thaj chaw tuaj yeem pab tiv thaiv lawv.
Citrus scents yog nyob rau sab saum toj ntawm cov npe ntawm cov ntxhiab uas koj tus dev tsis nyiam. Txiv qaub, txiv qaub, txiv kab ntxwv, thiab txiv kab ntxwv tsw tsw ntxhiab tsw rau dev vim hais tias lub zog ntawm citrus irritates lub qhov ntswg.
Conclusion
Nws yog qhov tseeb tias yog dev yog superheroes, nws yuav yog vim muaj peev xwm tsis txaus ntseeg ntawm lawv lub qhov ntswg los khaws cov ntxhiab tsw. Nws zoo li tsis muaj cov khoom uas dev tsis tuaj yeem hnov qab; lawv tuaj yeem hnov qab dej, av, thiab txawm tias cement! Lawv lub qhov ntswg tuaj yeem hnov cov khoom faus yam tsawg kawg 40 ko taw tob thiab khaws cov ntxhiab tsw uas muaj hnub nyoog ntau lub lis piam. Thaum muaj ntxhiab tsw uas dev tsis nyiam, ib tus ntxhiab tsw zoo li npog lwm tus, raws li lawv tuaj yeem pom lawv txawv.
