Complex sentence: Season two of Dual Survival began airing from April 22,2011, for a total of 12 Episode which came to an end on July 1,2011, on the Discovery Channel.
Split into simpler sentences: Season two of Dual Survival began airing from April 22,2011. It aired for a total of 12 episodes, with the last one airing on July 1,2011, on the Discovery Channel.