Taimen is a fierce predator that Mongolians call river wolf. They can live to about 50 years and they have a strike that will take your breath away. Picture yourself casting a mouse fly across a wonderful riffle. As your fly skitters across the surface, you can feel yourself leaning into the cast in anticipation of the impending strike. Then, it happens. The water erupts with a colossal head and mouth that demolishes your fly. In 2005, the biggest fish caught measured 58 inches