4320 http://www.rmpbs.org/content/index.cfm/program/17882 en-us Sharks are awesome, spectacular and sometimes frightening, but they are also sadly misunderstood; much of their lives is unknown and mysterious. With David Attenborough narrating, this program reveals some of the shark's private life, including fantastic footage of behavior never before seen. © 2009 Rocky Mountain PBS http://www.rmpbs.org/resources/files/programs/100x100/17882.jpg http://www.rmpbs.org/content/index.cfm/program/17882 100 100