Complex sentence: Reintroduced into its ancient environment, the grey wolf will spread across all ecosystems and compete for prey with all other predators; it may once again be seen hunting camels in arid regions, and bison on the grassy prairies of the Great Plains.
Split into simpler sentences: Reintroduced into its ancient environment, the grey wolf will spread out across all the ecosystems and compete for prey with all the other predators. The grey wolf may once again be seen hunting camels in the arid regions and bison on the grassy prairies of the Great Plains.