ossil evidence from the past 4 million years suggests that The expansion of woodland vegetation in Eastern Africa likely explains human migration out of the region The transition from woodland to grasslands may have favored bipedalism in our early hominid ancestors Human brain sizes increased through time, likely because of Milankovitch cycles and impacts on Earth s radiation budget Early hominids were unable to migrate out of Africa until Eurasian glaciers retreated

ossil evidence from the past 4 million years suggests that The expansion of woodland vegetation in Eastern Africa likely explains human migration out of the region The transition from woodland to grasslands may have favored bipedalism in our early hominid ancestors Human brain sizes increased through time, likely because of Milankovitch cycles and impacts on Earth s radiation budget Early hominids were unable to migrate out of Africa until Eurasian glaciers retreated

		The expansion of woodland vegetation in Eastern Africa likely explains human migration out of the region
		The transition from woodland to grasslands may have favored bipedalism in our early hominid ancestors
		Human brain sizes increased through time, likely because of Milankovitch cycles and impacts on Earth s radiation budget
		Early hominids were unable to migrate out of Africa until Eurasian glaciers retreated