Urban ecology doesn’t have enough humans in it
August 18th, 2011 |
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When you read the word “nature,” what do you think of? Maybe you imagine a dark wood with sunlight reaching a mottled floor of foliage, thrushes singing and chipmunks hopping. Maybe you peer through grassy dunes at sanderlings running back and forth in the surf , occasionally halting to frantically peck at the sand. Or [...]
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Finding My Inner Neandertal
April 19th, 2013 |
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Odds are you carry DNA from a Neandertal, Denisovan or some other archaic human. Just a few years ago such a statement would have been virtually unthinkable. For decades evidence from genetics seemed to support the theory that anatomically modern humans arose as a new species in a single locale in Africa and subsequently spread [...]
Keep reading »Human Ancestors Made Deadly Stone-Tipped Spears 500,000 Years Ago
November 15th, 2012 |
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Human ancestors were fashioning sophisticated hunting weapons half a million years ago. An analysis of stone points from a site in South Africa called Kathu Pan 1 indicates that they were attached to shafts of wood and used as spears. The finding pushes the earliest appearance of hafted multicomponent tools back by some 200,000 years. [...]
Keep reading »Oldest Arrowheads Hint at How Modern Humans Overtook Neandertals
November 7th, 2012 |
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Archaeologists excavating a cave on the southern coast of South Africa have recovered remains of the oldest known complex* projectile weapons. The tiny stone blades, which were probably affixed to wooden shafts for use as arrows, date to 71,000 years ago and represent a sophisticated technological tradition that endured for thousands of years. The discovery [...]
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