Many cave stencils are of left hands, so stencilers probably used their right hands to paint. Shown are finds from Borneo (top) and Papua New Guinea.
Credit: From top: Bradshaw Foundation; Nancy Sullivan & Assoc.
Teens take home science gold at Intel ISEF
One of the most abstract fields in math finds application in the 'real' world
A change in taste cells makes glucose-baited traps repellent
Bumps stretch out as mammals drink
Coverage of the 2013 American Association for the Advancement of Science meeting
The Year in Science 2012
Three-part series on the scientific struggle to explain the conscious self
Tables of contents, columns and FAQs on SN Prime for iPad