<prompt> Fingqa isihloko: Ososayensi bakholelwa ukuthi abazingeli basendulo kungenzeka babefaka ubuthi emicibisholweni nasemikhonweni yabo ukuze basize ekubambeni inyamazane. Abacwaningi baye basungula inqubo entsha ebavumela ukuba bahlole izikhali zasendulo ukuze bathole izinsalela ezishiywe izinto eziyingozi zezitshalo ezingezwe kuzo. Ukuhlolwa kokuqala kuye kwabonisa ukuthi imicibisholo yaseGibithe eneminyaka engu-4 000 ubudala enezihloko zamatshe yayigcwele izinto ezinobuthi ezihlanganisa isitshalo i-Acokanthera. UDkt. Valentina Borgia, onguchwepheshe wezikhali zokuzingela zasendulo eMcDonald Institute for Archaeological Research eNyuvesi yaseCambridge, ukholelwa ukuthi abazingeli kungenzeka ukuthi babesebenzisa amakhemikhali anobuthi ezikhalini zabo eminyakeni engaba ngu-30 000 edlule. Lesi sithombe esingenhla sibonisa imicibisholo yaseChina eyayisetshenziswa ku-crossbow eyayicwiliswe ngobuthi. Wathi abazingeli bePaleolithic kungenzeka babesebenzisa izinhlayiya ezinobuthi ezenziwe ngezitshalo ukuze benze izikhali zabo zibulale inyamazane ngokushesha. Ucwaningo olusha lusikisela ukuthi kungenzeka ukuthi abantu bokuqala baqala ukujikijela imikhonto eyayibenza bakwazi ukuzingela eminyakeni engaba yizigidi ezimbili edlule. Ososayensi baye bathola ukuthi amathambo ezinhlobo zokuqala zabantu ashintsha ukuze azinike amandla okuphonsa njengabantu banamuhla. Ukuhlola izinsalela ze - Homo erectus, ukhokho wesintu osuphelile, kubonisa ukuthi amahlombe namathambo ayo ekhola kwakuyivumela ukuba iphonse izinduku ngokunembile nangamandla. Lokhu kwakuyokwenza i-Homo erectus ikwazi ukuba umzingeli onekhono, okwazi ukuphonsa izikhali ezinjengemikhonto namatshe ekuzingeleni okungenzeka. Wathi: Kwakunengqondo ukuba abantu basebenzise ubuthi. Ngokwazo, izikhali zePaleolithic ezinemicibisholo yamatshe kungenzeka zazingenawo amandla okubulala ngokwanele okwenza isilwane esikhulu njengenyathi ebomvu singanyakaziswa noma sibulawe. Izitshalo ezinobuthi zaziningi futhi abantu bangaphambi komlando babeyazi indawo ababehlala kuyo, babezazi izitshalo ezidliwayo namandla azo okuba imithi nobuthi. Ukwenza ushevu kulula futhi akubizi, futhi ingozi incane. Ngaphezu kwalokho, ukwenza ubuthi ngokuvamile kuyingxenye yesiko nesiko lokuzingela. UDkt. Borgia ubelokhu...  <response>: Ososayensi baseCambridge University bahlola ukuthi izikhali zasendulo zinobuthi yini. Bakholelwa ukuthi abazingeli bePaleolithic babesebenzisa ubuthi bezitshalo kuze kube iminyaka engu-30 000 edlule. Lokhu kwakuyokwenza imikhonto nemicibisholo enekhanda elenziwe ngamatshe ibe yingozi nakakhulu enzalweni. Ukuhlolwa kokuqala kwemicibisholo yaseGibithe eneminyaka engu-4 000 ubudala kubonise izimpawu zobuthi. Ithimba manje lithemba ukuhlola izeluleko zezikhali ezindala ukuze lithole izimpawu zobuthi. 