Fig. 4. Representative individuals with milk consumption evidence.

(A) MS/MS spectra of a goat BLG peptide from the earliest individual from whom dairy peptides were recovered (DA793; cal. 1500 to 1312 BCE). (B) Highest altitude individual in this study (DA742; cal. 601 to 758 CE; 4654 masl), from the Ounie cemetery in northern Tibet, accompanied by cattle/yak (Bovinae) and sheep/goat (Caprinae) bones (photograph by Z.C.).