2024 Tus sau: Daisy Haig | [email protected]. Kawg hloov kho: 2023-12-17 03:09
WASHINGTON - Cov kws tshawb nrhiav European thiab Asmeskas tau hais rau hnub Monday tias ntau cov nqaij noj nqaij pom tias lawv tsis muaj peev xwm saj cov qab qab zib txawv lub sijhawm, kev tshawb pom qhia pom tias kev noj zaub mov yog lub luag haujlwm tseem ceeb hauv kev hloov pauv.
Cov neeg tshawb fawb feem coob ntseeg tias muaj lub peev xwm los saj qab zib, savory, iab, qab ntsev, thiab qab qab, hais tias cov kws tshawb fawb ntawm Monell Chemical Senses Center nyob Pennsylvania thiab University of Zurich, Switzerland.
Tom qab tau piav qhia yav dhau los hais tias qhov kev hnov qab zib no ploj hauv cov tsiaj nyeg thiab cov tsiaj nyeg vim muaj qhov hloov kho cov caj ces, tib pab neeg tau soj ntsuam 12 cov tsiaj sib txawv uas tuaj yeem noj nqaij thiab ntses thiab tsom mus rau lawv cov qab zib noj qab haus huv cov noob, hu ua Tas1r2 thiab Tas1r3.
Xya ntawm 12 tau pom tias muaj ntau qib kev hloov pauv ntawm caj ces hauv Tas1r2 gene uas ua rau nws tsis tuaj yeem hnov qab cov khoom qab zib, suav nrog cov tsov ntxhuav hauv hiav txwv, cov ntsaws ruaj ruaj, cov pacific seals, Asian me-clawed otters, pom hyenas thiab dolleins bottlenose.
Hiav txwv tom tsov ntxhuav thiab dolphin - ob qho tib si ntseeg tias tau hloov zuj zuj los ntawm cov tsiaj av uas rov qab mus rau lub hiav txwv ntau lab xyoo dhau los - nyiam nqos lawv cov zaub mov tag nrho, thiab qhia tias tsis muaj kev nyiam saj rau cov khoom qab zib lossis lwm yam rau qhov teeb meem ntawd, cov kws tshawb nrhiav. hais.
Ntxiv rau, dolphin muaj tshwm sim rau peb saj receptor noob inactivated, hais tias lawv tsis saj qab zib, savory lossis iab tsw.
Txawm li cas los xij, cov tsiaj uas tau kov cov khoom qab zib - xws li raccoons, Canadian otter, spectacled dais thiab hma liab - tswj lawv cov Tas1r2 noob, qhia tias lawv tseem tuaj yeem saj cov khoom qab zib txawm tias lawv haus nqaij.
Gary Beauchamp, tus kws paub txog biologist ntawm Monell tau hais tias Kev saj qab zib zoo yog ze li ntawm kev dav dav hauv tsiaj.
Nws hais ntxiv tias "Cov tsiaj sib txawv nyob hauv ntiaj teb sib txawv thiab qhov no tshwj xeeb rau lawv lub ntiaj teb ntawm cov zaub mov," nws ntxiv.
"Peb txoj kev tshawb nrhiav pom ntxiv cov pov thawj ntxiv tias cov tsiaj nyiam noj dab tsi - thiab cov no suav nrog tib neeg - nyob ntawm qhov tsis txaus ntawm lawv cov ncauj lus pib lom neeg", Beauchamp hais.
Cov kev tshawb fawb tshwm nyob hauv Asmeskas phau ntawv xov xwm Kev Hais Plaub ntawm National Academy of Sciences.
Pom zoo:
Hill Cov Khoom Noj Khoom Noj Khoom Noj Khoom Noj Yooj Yim Rov Qab Los Ntawm Kev Xaiv Cov Khoom Noj Rau Cov Khaub Ncaws ឆ្កែ Vim Muaj Vitamin D Ntau
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Cov Khoom Noj Muaj Teeb Meem Li Cas Kev Noj Qab Haus Huv Ntawm Cov Dev? - Cov Khoom Noj Puas Muaj Khoom Noj Kom Cov Me Nyuam Cov Hniav Noj Qab Nyob Zoo?
Kev txhuam hniav txhua hnub thiab kev ntxuav kaus hniav txhua hnub raws li qhov xav tau yog qhov zoo tshaj los tiv thaiv kev tsim cov mob ncig hauv cov dev, tab sis kev noj zaub mov zoo tuaj yeem ua lub luag haujlwm tseem ceeb. Qhov no muaj tseeb tshwj xeeb thaum txhuam hniav txhua hnub yog tsis tau, txawm tias yog tus dev npau taws lossis tus tswv tsis tuaj yeem txhuam tsis tu ncua
Pab Cov Rog Rog Rog Poob Rog - Lub Cev Poob Phaus Rau Tus Miv - Khoom Noj Khoom Haus Nuggets Miv
Cov rog rog tau nyob rau hauv cov xov xwm tsis ntev los no. Ua ntej, muaj zaj dab neeg tu siab txog Meow, thiab tom qab ntawv yuag. Kev tshaj tawm xov xwm yog qhov zoo yog tias nws tuaj yeem pab cov neeg to taub tias cov rog rog tsis yog miv zoo. Dab tsi peb xav tau yog cov pov thawj daws teeb meem ntawm kev rog dhau ntawm feline
Yog Cov Khoom Noj Pub-Qib Khoom Noj Tsis Zoo Rau Cov Tsiaj - Tib Neeg Cov Khoom Noj Khoom Noj Rau Cov Tsiaj
Ua kev nco txog Lub Tebchaws Kev Tiv Thaiv Kev Lom Zem Tsiaj Hauv Tebchaws, thov txiav txim siab tias koj tuaj yeem tsis kam muab tshuaj lom cov kab mob txhua hnub hauv koj tus tsiaj cov "zaub mov zoo kom tiav thiab sib npaug" qhuav lossis cov kaus poom zaub mov. Nrog txoj kev paub no, koj puas tseem yuav pub koj cov khoom noj tsiaj thiab khoom noj ua nrog cov khoom noj tsis yog tib neeg?