Mary Allen
Koj puas tau saib koj tus dev thiab xav tias nws tawm qhov twg? Lawv tsis tau tham txog lawv niam lawv txiv yog leej twg, tab sis hais txog tej yam tob. Thaum tib neeg evolution yog ib lub ntsiab lus nrov, ua li cas txog canine evolution?
dev raug kev txom nyem qhov twg? Puas yog dev hloov zuj zus los ntawm lwm yam tsiaj los yog lawv tsim los ntawm ib tug loj nyob rau hauv lub ntiaj teb no los ua peb cov phooj ywg zoo tshaj? Thaum muaj kev tawm tsam zoo rau kev loj hlob dev, muaj qee cov lus teb.
Ntawv Qhia Txog
Muaj ntau controversy nyob ib ncig ntawm lub evolution ntawm dev. Txawm li cas los xij, cov kws tshawb fawb pom zoo rau ib yam: cov poj koob yawm txwv ntawm cov dev yog hma thaum ub.
Yuav ua li cas raws nraim li dev evolve los ntawm hma? Ntev dhau los, hma tau yos hav zoov cov seem ntawm cov tsiaj nyeg, tau los ze zog rau tib neeg thiab lawv lub lawj. Maj mam, cov hma tau ua phooj ywg thiab tsim cov xeeb ntxwv uas yooj yim dua nyob ib puag ncig tib neeg. Thaum kawg, hma hloov zuj zus mus rau hauv cov dev thiab los ua txiv neej tus phooj ywg zoo tshaj plaws.
Cov dev tuaj qhov twg?
Muaj qee qhov kev sib cav txog thaj av uas cov dev yug los ntawm - Africa, East Asia, Europe, Mongolia, lossis Siberia. Kev tshawb fawb pom tias cov dev thaum ntxov hauv Africa tau nqis los ntawm cov dev hauv Middle East. Nws kuj qhia tau hais tias thaj chaw faib ntawm cov dev tsis ib txwm coincide nrog tib cov qauv ntawm tib neeg tsiv teb tsaws.
Qhov tsis muaj pov thawj rau qhov tseeb hauv cheeb tsam keeb kwm ntawm dev tawm cov lus nug ntau dua li cov lus teb. Vim li cas cov kws tshawb fawb tsis pom zoo? Hmoov tsis zoo, canine DNA yog lub ntsiab lus tsis meej pem thiab nyuaj.
Txoj Kev Domestication of Dogs and Rabies
Muaj kwv yees li ntawm 900 lab tus dev hauv ntiaj teb2, qee leej yog tsiaj thaum lwm tus neeg vwm lossis tsis muaj tsev nyob. Ntau tshaj 59,000 tus neeg tuag los ntawm rabies txhua xyoo.3 Feem coob ntawm cov neeg tuag no yog vim dev tom, thiab feem ntau ntawm cov no yog los ntawm cov dev uas feral lossis tsis muaj tsev nyob vim lawv tsis tau txais lawv cov tshuaj tiv thaiv txhua xyoo.
Qhov ntawd yog ib feem yog vim li cas nws tseem ceeb heev uas peb yuav tsum tau muab tshuaj tiv thaiv peb cov dev kom peb thiaj li tau txais cov dev tawm ntawm txoj kev thiab mus rau hauv tsev uas lawv tuaj yeem coj mus rau kws kho tsiaj rau lawv cov tshuaj tiv thaiv txhua xyoo. Qhov ntau dua qhov domestication ntawm dev, qhov ntau tuag peb yuav muaj los ntawm rabies.
Kev yug me nyuam ua li cas hloov tus dev tsos thiab noj qab haus huv?
Nrhiav koj tus dev yug thiab keeb kwm kev noj qab haus huv
Thaum lub rooj txiav txim txiav txim tseem tawm ntawm qhov tseeb tias cov dev tuaj ntawm thiab ntev npaum li cas lawv tau nyob ib puag ncig, kev kuaj DNA hauv tsev tso cai rau koj nkag siab tob rau hauv koj tus dev. Lub plhu plhu tuaj yeem muab cov ntaub ntawv qhia meej rau koj uas qhia koj tus dev qhov tshwj xeeb DNA pleev, xws li pawg neeg tawg rog, cov neeg txheeb ze, muaj kev pheej hmoo mob nkeeg, thiab ntau ntxiv.