Thursday, December 15, 2011

We do have bigger brains than Neanderthals did


Modern humans possess brain structures larger than their Neanderthal counterparts, suggesting we are distinguished from them by different mental capacities, scientists find. 

We are currently the only extant human lineage, but Neanderthals, our closest-known evolutionary relatives, still walked the Earth as recently as maybe 24,000 years ago. Neanderthals were close enough to the modern human lineage to interbreed, calling into question how different they really were from us and whether they comprise a different species.

To find out more, researchers used CT scanners to map the interiors of five Neanderthal skulls as well as four fossil and 75 contemporary human skulls to determine the  shapes of their brains in 3-D. Like modern humans, Neanderthals had larger brains than both our living ape relatives and other extinct human lineages.

Read the rest of this article...

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