Some June 2005 reports in the British media portrayed the situation as scientists creating scary zombie dogs, but the reality is actually a hopeful one, abetting life not death. Badly injured people and animals may soon be kept in lengthy and reliable suspended animation until they can be properly treated. For this, scientists at the Safar Center for Resuscitation Research in Pittsburgh, Pennsylvania have come up with an improved version of their technique in which animals' blood is drained out and then replaced with a cold salt solution. (This method was used in their experiments at least as early as...