Dab muaj qhov hnov tsw muaj zog uas yog 1 lab npaug ntawm tus neeg mob. Qhov kev txawj ntse tsis txaus ntseeg no ua rau lawv zoo heev rau kev yos hav zoov thiab pab rau cov neeg muaj ntxhiab tsw qhov muag tsis pom kev, tab sis nws kuj muaj ntau lwm yam kev siv. Feem ntau, cov dev muaj txog 20 npaug ntawm cov ntxhiab tsw receptors li tib neeg ua. Tus dev lub qhov ntswg muaj txog 300 lab olfactory receptors (tib neeg muaj txog 6 lab), thiab ib feem ntawm lawv lub hlwb mob siab rau hnov tsw yog li 40 npaug ntau dua li peb. Yog li, deb npaum li cas cov dev tuaj yeem hnov qab?Nyob rau hauv cov xwm txheej zoo, qhov nruab nrab tus dev tau tshaj tawm tias nws hnov txog 20 km (12.4 mais) deb.
Dab tswm tau deb npaum cas?
Cov dev loj muaj qhov muag pom qhov muag loj dua thiab muaj kev hnov tsw zoo dua li cov dev me. Cov dev yug los rau taug qab thiab tua tsiaj, zoo li German Shepherds lossis Beagles, kuj muaj qhov zoo ntawm kev hnov tsw zoo dua li lwm yam tsiaj.
Kwv yees li 40% ntawm tus dev lub hlwb mob siab rau tsw. Tib neeg muaj txog 6 lab olfactory receptors. Feem ntau cov dev muaj txog 100 lab. Scent hounds muaj txog 300 lab.
Cov npe hauv qab no qhia tau hais tias dev yug nrog qhov hnov tsw zoo tshaj plaws:
- Bloodhounds - Cov dev no muaj keeb kwm ntev mus nrhiav tshuaj tsw qab rau tub ceev xwm. Bloodhounds kev hnov tsw ntawm tsw yog suav tias yog qhov tseeb tias nws txawm lees txais hauv tsev hais plaub.
- Beagle - Beagles nquag siv los hnia cov tshuaj rau US Customs thiab ciam teb neeg saib xyuas.
- German Shepherd - Qhov no yog ib hom dev coj mus siv rau tub ceev xwm thiab tub rog. Cov dev no siv lawv qhov zoo kawg nkaus hnov tsw rau kev tshawb nrhiav thiab nrhiav thiab cawm.
- Dachshund - Tus me me tab sis muaj zog Dachshund ua tau zoo ntawm kev tshawb nrhiav tsw ntxhiab hauv av. Hom no yog thawj bred mus yos hav zoov badgers thiab underground vermin.
- Harrier - Harriers tau txais lawv lub npe vim lawv muaj peev xwm taug qab hares. Lawv yog cov neeg yos hav zoov uas muaj peev xwm nqus tau cov tsiaj los ntawm mais deb.
- Basset Hounds - Thib ob tsuas yog Bloodhounds rau lawv lub peev xwm sniffing, cov dev no nquag siv rau kev tshawb nrhiav thiab cawm txoj haujlwm.
- Coonhounds - Coonhounds ntawm ntau ntau yam yog siv los yos hav zoov dev vim lawv tuaj yeem taug qab cov ntxhiab tsw ntawm mais. Lawv lub siab hnov tsw tau ua kom zoo zoo uas lawv tuaj yeem pom cov ntxhiab tsw tsw qab tso tseg rau hnub.
- Labrador Retrievers - Labs excel ntawm scent detection. Lawv tau siv rau kev tshawb nrhiav-thiab-kev ua tub txib, thiab qee qhov tseem raug cob qhia txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau kuaj mob qog noj ntshav. Cov tub rog Asmeskas feem ntau tso siab rau Lab Retrievers ua foob pob sniffers.
- Golden Retriever - Cov tsiaj no yog siv rau kev tshawb nrhiav thiab cawm, thiab ntau tus raug cob qhia ua kev pabcuam dev kom hnia cov tshuaj tsis haum rau lawv tus tswv.
- Belgian Malinois - Malinois yog ib tug neeg ua tub rog nyiam dev vim lawv xav hnov tsw ntxhiab ua rau lawv ntes tau cov khoom tawg. Cov tsiaj no tsuas yog siv los ntawm Navy SEALS xwb. Nrog rau lawv qhov kev hnov tsw zoo heev, lawv muaj qhov nrawm nrawm thiab kev ua siab ntev uas ua rau lawv mus rau kev tshem tawm thaum muaj xwm txheej ceev ntawm cov neeg raug liam lossis cov yeeb ncuab sib ntaus sib tua.
Aub's Smile Distance Compared to Other Tsiaj
| Nyob | Muaj Ntsig Qhov Ncauj Nyob Hauv Qhov Zoo Kawg |
| Dog | 20 km |
| Hmoob | 2 m (0.02 km) |
| Polar Xyooj | 30 km |
| African Elephant | 19 km |
| Caw | 10 km |
| Grizzly Xyooj | 32 km |
| Moth | 7 km |
| Cat | 6 km |
Qhov twg cuam tshuam tus dev qhov hnov tsw?
Huab cua muaj kev cuam tshuam ncaj qha rau tus dev tsis hnov tsw ntau. Nyob rau hnub kub, ntxhiab tsw mus deb dua. Cua tuaj yeem nqa tus ntxhiab mus rau lossis deb ntawm tus dev lub qhov ntswg. Nyob rau hauv huab cua txias, tsw tsw nyob ze rau hauv av. Lwm yam tseem ceeb cuam tshuam rau tus dev qhov hnov tsw:
- Kev noj qab haus huv - Tus dev uas muaj cov pos hniav, piv txwv li, yuav tsis hnov tsw zoo li dev tsis muaj ib tug.
- Hnub nyoog - Zoo li tib neeg, dev hnov, pom, thiab hnov tsw txo qis thaum lawv laus zuj zus.
- Kev noj haus - Tus dev noj zaub mov kom zoo, noj qab nyob zoo yuav muaj peev xwm tswj tau qhov hnov tsw zoo dua li ib qho uas tsis muaj zaub mov noj.
Dab Siv Lawv Qhov Ncauj Ncauj Nyob Hauv Lub Neej Txhua Hnub
Cov dev siv lawv qhov hnov tsw los tshawb txog lub ntiaj teb ib puag ncig lawv thiab cuam tshuam nrog lwm tus dev thiab tib neeg. Lawv kuj siv los sib txuas lus. Herding dev zoo li Border Collies siv lawv qhov hnov tsw los pab tswj lawv cov tsiaj. Retrievers zoo li Labrador thiab Golden Retrievers siv nws los nrhiav ntses, thiab yos hav zoov dev zoo li Beagles siv lawv lub peev xwm los nrhiav kev ua si.
Tus dev qhov hnov tsw tsw tuaj yeem siv los pab cov neeg muaj teeb meem uas ua rau lawv tsis hnov tsw, xws li Parkinson tus kab mob lossis cystic fibrosis. Cov dev kuj tau siv ntau zaus hauv kev tshawb nrhiav-thiab-kev ua haujlwm txhawm rau nrhiav cov neeg uas raug cuam tshuam nrog kev puas tsuaj ntuj xws li dej nyab lossis hluav taws.
Ntawm no yog ob peb yam uas tus dev lub qhov ntswg tuaj yeem pab ntes tau:
- Prey, suav nrog mos lwj, ducks, hma, luav, thiab lwm yam kev ua si me
- Nkauj tawm tshiab tub ceev xwm ntes
- Medication
- tshuaj tsis raug cai
- Cancer thiab kis kab mob
- Panuts thiab lwm yam allergens
- Bed bugs
- Nco neeg
- Bombs
- Cov khoom siv hluav taws xob
Facts About a Dog's Smell
Dab lub qhov ntswg zoo kawg! Nov yog ob peb qhov tseeb txog tus dev qhov hnov tsw:
- Aub muaj 50 tus ntxhiab tsw rau txhua tus receptors uas tib neeg muaj.
- Brachycephalic breeds, zoo li Bulldogs, muaj tsawg tus ntxhiab receptors dua li dev nrog ntev snouts.
- Lub Bloodhound muaj txog 300 lab tus ntxhiab tsw receptors. Lwm cov ntxhiab hounds muaj tsawg dua.
- Dab tsw ntxhiab thiab ua pa los ntawm cov kab sib txawv hauv lawv lub qhov ntswg.
- Tus dev tuaj yeem hnov mob, nrog rau kev ntshai, kev tu siab, thiab kev ntxhov siab.
- Scent-tracking dogs raug cob qhia kom tsom ntsoov rau ib qho tsw thiab tsis quav ntsej ntau txhiab tus ntxhiab tsw.
- Nrhiav dev feem ntau ua rau huab cua ntxhiab uas nqa los ntawm cua.
- Aub lub qhov ntswg ntub ua rau lawv ntes cov ntxhiab tsw zoo dua.
- Dog qhov ntswg prints zoo li tib neeg cov ntiv tes; tsis muaj ob tug dev muaj qhov ntswg tib yam.
Conclusion
Dab muaj qhov hnov tsw tsw qab. Lawv tuaj yeem hnov txog yam uas tib neeg ua tsis tau, uas ua rau lawv zoo heev ntawm kev taug qab txhua yam, los ntawm tib neeg thiab pom tsis pom kev rau tshuaj thiab foob pob. Smell yog ib qho ntawm koj tus dev qhov kev xav zoo tshaj plaws. Txawm hais tias lawv tsis tau txais kev cob qhia ntawm kev kuaj pom tus ntxhiab, koj tus dev siv lawv lub qhov ntswg mus rau lub ntiaj teb.
