Mechine ea kajeno ea temo e na le phello e mpe mobung oa mobu 'me e baka likoluoa tsa tlhaho. Qeto ena e fihletsoe ke sehlopha sa bo-ramahlale ba tsoang Sweden, Switzerland le USA. e hatisitsoeng mosebetsi oa hae koranteng Proceedings of the National Academy of Sciences (PNAS).
Boithuto bona bo bontša hore haeba ho elella bofelong ba lilemo tsa bo-1950 ho kopanya likotuli tse laetseng lijo-thollo tse boima ba lithane tse 4, tsa sejoale-joale li ka ba boima ba lithane tse 36. Mechine ea morao-rao ea temo e entsoe ka tsela ea ho sireletsa mobu o senyehang: lithaere li etsoa hore li be bonolo le tse pharaletseng, tse fokotsang khatello e khethehileng fatše.
Empa sena se boloka feela bokaholimo ba mobu. Empa libakeng tse tebileng, mobu o motenya hoo ho nona ha oona ho leng kotsing. Ho kopana ho feteletseng ho boetse ho ama bokhoni ba ho fetisa metsi.
“Lena e ka ’na ea e-ba le leng la mabaka a etsang hore kotulo e fokotsehe le likhohola tse ntseng li eketseha lefatšeng ka bophara,” ho rialo sengoli sa boithuto se bitsoang Moprofesa Thomas Keller oa Univesithi ea Swedish ea Agricultural Sciences.
Keller le basebetsi-’moho le eena ba ile ba etsa ’mapa oa linaha tse kotsing e khōlō ea “ho petetsa ha mobu ka nako e telele.” Libaka tse nang le mathata ka ho fetisisa e ne e le Australia, Europe, Amerika Leboea le Boroa. Bo-rasaense ba hakanya hore karolo ea bohlano ea mobu o ka lengoang lefatšeng o senyehile hoo ho seng monyetla o monyenyane oa hore o ka tsosolosoa. Mobu oa Asia le Afrika, moo maemo a temo a seng a le holimo hakaalo, ha a na bothata ba ho kopana.