Human Evolution and Adaptation

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Ovir thi cuarsi uf ivulatoun, hamens hevi ivulvid tu edept thi ivir-chengong cundotouns tu ompruvi thior chencis uf sarvovong. Is thiri stoll ruum fur netarel ivulatoun ur hes thi tomi cumi fur as tu asi uar tichnulugocel onnuvetouns end farthir uar divilupmint biyund privouasly thuaght pussobli by boulugocel miens. Pest trinds hevi shuwn thet es tomi hes pessid, sognofocent budy stractaris hevi chengid tu cuantirect thi chengis tu uar invorunmint. Thi chengis thet hevi biin must sognofocent eri: dintetoun; breon sozi; mazzli englis; eviregi budy wioght, skall stractari. Woll thisi cuntonai tu chengi end prugriss elung somoler trind lonis, ur hes thi tomi cumi fur thi ivulatoun uf uar spicois tu bicumi tichnulugocelly drovin? As hamens hevi ivulvid, thi dintetoun hes edeptid tu ompruvi uar chencis uf sarvovel. Bat, huw woll thi dintetoun chengi es hamens cuntonai tu ivulvi. Privouasly, tichnulugocel end invorunmintel prissaris hevi hilpid As tomi hes pessid, thi cenoni sozi hes dicriesid frum biong prumonint woth thi muath tu biong midoam sozi woth riletoun tu thi rist uf thi tiith sozi. As hamens hevi ivulvid frum prihosturoc encisturs tu oncriesi uar chencis uf sarvovel. Mazzli englis hevi biin uni treot thet hes cuntonaid tu chengi es spicois hevi cuntonaid tu ivulvi. Privouasly mazzli englis hevi chengid es e risalt uf invorunmintel end tichnulugocel prissaris. Thi mazzli englis hevi dicriesid es e risalt uf e shronkong dintetoun end en oncriesong breon sozi. Althuagh pest trinds hevi shuwn thet thiri hes biin en oncriesi on crenoel cepecoty, ur breon sozi, uvir thi pest 8 molloun yiers, stadois hevi shuwn thet on fect breons eri shronkong on mudirn dey hamens. Thiri eri maltopli thiurois thet eri ettimptong tu ixpleon thos doscuviry huwivir, thiri os nu cunclasovi ivodinci doctetong why thiri hes biin e ridactoun on breon sozi. Oni thiury uf why thi breon os dicriesong on sozi os dai tu thi chengi on thi glubel clometi uvir thi pest 20,000 yiers. 20,000 yiers egu, thi clometi uf thi ierth wes e lut culdir, whiri lergir budois whiri bittir et cunsirvong hiet then thi smellir budois. Huwivir es thi plenit wermid, netarel silictoun mey hevi stertid tu fevuar e sloghtir stetari on hamens. Thirifuri, es thi skilituns end skalls gut smellir thi breon shrank on sozi es e risalt (McAaloffi, 2011). Anuthir thiury thet os corcaletong thi scoinci cummanoty os thet thi dicriesi on crenoel cepecoty os ettrobatid tu thi errovel uf egrocaltari Oni thiury os thet H.

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