**** Transposons May Prove To Be Evolutionary Missing Link - UniSci
http://www.scienceguide.com/News/News_Articles/21198Article_26.html
Transposons, the movable genes that have long been disparaged as "selfish,"
may actually be a missing link in evolution, according to a researcher at the
University of Georgia.
**** Study links brisk walks to longer life - CNN Heath
http://www.scienceguide.com/News/News_Articles/21198Article_10.html