SKULLS, demons, blood and sacrificial rituals. For graffiti artist Stuart Gilkenson the Aztecs represented striking ancient themes on which to hone his modern day skills. So the Hornsby 28-year-old ...

A team of cognitive neuroscientists at the University of Zurich, has found that ancient Aztec "skull whistles" found in gravesites are able to instill fear in modern people. In their study, published ...