![Fupa lagalu lakale limavumbula njira ya anthu oyamba ku America 20465_1](/userfiles/22/20465_1.webp)
Pagombe la Alaska, chidutswa cha fupa la galu chinali pafupifupi 10,000 zaka. Nakodka adadzakhala umboni wakale wodziwika wa kupezeka kwa agalu apanyumba ku North America. Itha kukhalanso mkangano watsopano m'malo mokomera mtima kuphatikizika kwa kuphatikizira kwapadera komwe kunachitika kuchokera kumpoto mpaka kumwera, kuchokera kumabanki a Berariva m'mphepete mwa Pacific Ocean. About Nakhodka amauzidwa mu makina osindikizira ku University of New York ku Buffalo.
Chinsalu chikusonyeza kuti zigawo zili kutali kwambiri ndi nyanja, osamukira kumadera akumwera, kubwera kumapeto kwa chiwombankhanga, kenako ndi gawo la Condiller. Ndinkamutsatira ndi izi kuti kusinthidwanso kumadutsa beergov yovulazidwa ndipo kenako nkufika kumtunda, komwe gulu lam'mwera layamba kale. M'malo mokomera mtima kusamuka kwagombe, ziwerengero zingapo zikuwonekera, kuphatikizapo mapazi adatsala zaka 13,000 zapitazo pachilumba cha Kalver ku West Coast of Canada.
![Fupa lagalu lakale limavumbula njira ya anthu oyamba ku America 20465_2](/userfiles/22/20465_2.webp)
Amathandizira malingaliro ndi kupeza zatsopano, zomwe zanenedwa mu nkhani yomwe yakonzedwa kuti atulutsidwe kwa Royal B. Ichi ndi chidutswa cha ukazi wa galu, wopezeka koyambirira kwa galu, wopezeka kumayambiriro kwa Alaska, Malo akum'mawa a chilumba cha Torgen. Sampleyo idalembedwa pafupifupi zaka 10150 - kutha kwa zaka zomaliza. Amakhulupilira kuti agalu omwe amapezeka ku Siberia kale kukhazikika kwa America ndipo amawoneka pano ndi osamukira oyamba.
![Fupa lagalu lakale limavumbula njira ya anthu oyamba ku America 20465_3](/userfiles/22/20465_3.webp)
Charlotte Lindaqvist (Charlotte Lindaqvist) ndi omwe amagwira ntchito amathetsa matenda onse a mitochondrial ndikufanizira ndi agalu amakono ndi agalu akale. Mwanjira imeneyi, mzere wa nyamayi adangotsatira agalu omwe amakhala ku Siberia nthawi yomaliza yomaliza. Komabe, mwayi woti nyamayi ikhale ku America mwachisawawa ndipo adapita komweko, opanda anthu.
Mu phanga yomweyo loyeza (Cave wa Malamulo), pomwe fupa lidapezeka, adazindikira kuti anthu amakhalabe, ngakhale. Komabe, malinga ndi asayansi, izi zimatsalira kale kuti phangalo m'magawo amenewo linali labwino kwambiri kuti likhale. Kuphatikiza apo, anthu akale amapezeka m'mapanga omwe ali pafupi. Chifukwa chake, ngakhale kuti malangizo achindunji pa kuti galuyu anali kunyumba, ayi, nthawi zambiri angazindikiridwe bwino. Zomwezo mosapita m'mbali zikuwonetsa mawonekedwe a isotopic. Amachitira umboni za zakudya zomwe zili mu nsomba, nyama ya amphaka am'nyanja komanso anamgumi.
Source: Sayansi yamanyazi