In my era the Proto-Pleistocene Bowie Epoch there was no such animal as a paid personal tutor.
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At the same time, the native Siberian mammoths, which may have been around for much of the Middle Pleistocene, completely disappeared.
But a Pleistocene version of the scene in my kitchen, with ground cassava roots instead of pancakes, might be more accurate, if less exciting.
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And fossil finds from Red Deer Cave, also in China, and Iwo Eleru in Nigeria point to a hitherto unappreciated diversity among Late Pleistocene humans.
In the Netherlands, for example, cattle are being used to re-create a simulacrum of a Pleistocene woodland, because their aurochs ancestors would have been vital in keeping forest patchy.
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One problem with trying to reconstruct the growth of the mind from Pleistocene materials is that you would need to know what varieties of mental equipment Stone Age minds already possessed.
The research contributes to a more complex picture that has been emerging of humankind during the Late Pleistocene, the period when modern humans left Africa and started to colonise the rest of the world.
In Pleistocene hunter-gatherer terms, the design community in Portland is more like a clan (100-200 members), small, but large enough for the neuronal effects described by Dr. Bargmann in the roundworm to take effect.
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In recent years, the Neanderthals - who lived across Europe, the Middle East and Central Asia in Pleistocene times - have come to be rehabilitated amid mounting evidence that their abilities had been underestimated.
"This study adds to a growing body of evidence about just how dramatic and tumultuous the Pleistocene climate actually was, " Dr Beth Shapiro, a scientist from Penn State University in the US, told BBC News.
Failure to adapt to the rapidly changing methods of media distribution will leave the clueless wallowing behind like mastodons in the muck of a Pleistocene tar pit (about as slow and agonizing of a death as I can imagine).
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