ScienceDaily: Top Science News

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• Brains are different in people with highly superior autobiographical memory
• Later Stone Age got earlier start in South Africa than thought
• Grin and bear it: Smiling facilitates stress recovery
• Archeologists unearth extraordinary human sculpture in Turkey
• Cooling, not population loss, led to fewer fires after 1500 in New World

Brains are different in people with highly superior autobiographical memory Posted: 30 Jul 2012 02:03 PM PDT Scientists have discovered intriguing differences in the brains and mental processes of an extraordinary group of people who can effortlessly recall every moment of their lives since about age 10.

Later Stone Age got earlier start in South Africa than thought Posted: 30 Jul 2012 12:50 PM PDT The Later Stone Age emerged in South Africa more than 20,000 years earlier than previously believed -- about the same time humans were migrating from Africa to the European continent, says a new study.

Grin and bear it: Smiling facilitates stress recovery Posted: 30 Jul 2012 12:01 PM PDT Just grin and bear it! At some point, we have all probably heard or thought something like this when facing a tough situation. But is there any truth to this piece of advice? Feeling good usually makes us smile, but does it work the other way around? Researchers have now examined how different types of smiling, and the awareness of smiling, affects our ability to recover from episodes of stress.

Archeologists unearth extraordinary human sculpture in Turkey Posted: 30 Jul 2012 08:21 AM PDT A beautiful and colossal human sculpture is one of the latest cultural treasures unearthed by an international team at the Tayinat Archaeological Project excavation site in southeastern Turkey.

Cooling, not population loss, led to fewer fires after 1500 in New World Posted: 30 Jul 2012 06:41 AM PDT After Columbus' voyage, burning of New World forests and fields diminished significantly – a phenomenon some have attributed to decimation of native populations. But a new study suggests global cooling resulted in fewer fires because both preceded Columbus in many regions worldwide.

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