Complex sentence: Some bears emerging from hibernation seek out tigers in order to steal their kills, but brown bears are generally afraid of tigers and change their path after coming across tiger trails, but rare exceptions have been reported.
Split into simpler sentences: Some bears emerging from hibernation seek out tigers in order to steal their kills, but brown bears are generally afraid of tigers and change their path after coming across tiger trails. Brown bears are generally afraid of tigers and change their path after coming across tiger trails, but rare exceptions have been reported.