Map with locations of sites discussed in text and listed in Datasets S2 and S5. Woranso-Mille, Middle Awash (Aramis, Asa Issie, Asa Koma), Dikika, Gona (Segala Noumou), and Hadar and are in the Afar region in Ethiopia. Lomekwi, Allia Bay, and Kanapoi are in the Omo-Turkana region of Kenya. Imagery is from NASA's Earth Observatory from August 2004 (72).