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"Our species made its debut some 300,000 years ago. During the preceding millenniums, our continent of origin underwent environmental shifts that very likely influenced the trajectory of human evolution. Archaeologists working in Kenya have uncovered new clues to support this assertion, showing the surprising extent to which climate change influenced the behavior of early humans and their approach to technology.
Dramatic climate instability in east Africa, starting around 360,000 years ago, had a pronounced effect on human evolution, but also on human culture, according to three new studies published today in Science. As the African landscape changed, so too did the animals who lived upon it. This forced early humans to spread out, establish trade routes, and construct innovative new tools in order to adapt and survive. Ancient climate change, according to this view, changed both our biology and our behavior. What's more, these cultural shifts happened tens of thousands of years earlier than what was suggested by earlier archaeological discoveries.
Anatomically modern humans, otherwise known as Homo sapiens, emerged just prior to the onset of the Middle Stone Age, a period that lasted from about 280,000 to 40,000 years ago. Before the Middle Stone Age, humans lived in the Early Stone Age, an era characterized by the popular Acheulean stone handaxe. The new studies explore the environmental, ecological, and technological changes that happened in East Africa during this critically important transitionary time in human evolution. All three studies focused on excavations done at the Olorgesailie Basin in southern Kenya, a region that, for the past 75 years, has yielded artifacts dating as far back as 1.2 million years ago…"
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Amicalement
Armand
paints a legend from the Trojan Wars.
