Quantcast

Latest Dietrich Stout Stories

25561a3f339862183c8b062c6f9289551
2010-11-04 10:11:20

Was it the evolution of the hand, or of the brain, that enabled prehistoric toolmakers to make the leap from simple flakes of rock to a sophisticated hand axe? A new study finds that the ability to plan complex tasks was key. The research, published today in the Public Library of Science journal PLoS ONE, is the first to use a cyber data glove to precisely measure the hand movements of stone tool making, and compare the results to brain activation. "Making a hand axe appears to require...


Word of the Day
call-note
  • The call or cry of a bird or other animal to its mate or its young.
'Call-note' is newer than 'bird-call,' which originally referred to 'an instrument for imitating the note of birds' but now also refers to 'the song or cry of a bird.'
Related