An often overlooked aspect of Pokemon games is that players have the Pokedex at their disposal to learn more about the creatures they catch and train or even discover the habitats of those they only encountered in their adventures. The Pokedex is not an essential tool in terms of gameplay, and it is frequently used as a narrative means to make a given region's Pokemon Professor entrust players with their starter Pokemon and then go on a journey to research data on all critters that live in the area. This is precisely the reason why a Pokedex can include all sorts of information on a plethora of different Pokemon species, which can be vital in understanding Pokemon behavior and evolution.