Complex sentence: Techniques from evolutionary algorithms applied to the modeling of biological evolution are generally limited to explorations of microevolutionary processes, however some computer simulations, such as "Tierra" and "Avida", attempt to model macroevolutionary dynamics.
Split into simpler sentences: Techniques from evolutionary algorithms applied to the modeling of biological evolution are generally limited to explorations of microevolutionary processes. The computer simulations "Tierra" and "Avida" attempt to model macroevolutionary dynamics.