August 31, 2011
More Evidence Links Genes to Parkinson'sA genetic variation that
reduces the risk of Parkinson's disease by nearly 20 percent in
many populations has been found by an international team of
scientists.
Homo Erectus Had an Axe to GrindHand axes, picks and
other stone tools that are 1.8 million years old suggest that
ancient humans were using advanced tool-making methods at least
300,000 years earlier than previously thought, a new study
says.