|Sonia the Hedgehog exists, and it can be found in real encyclopedias. You may read more about it here:|
Sania makes an appearance in Sonic Heroes 2 as part of Team Underground. She is still trying to find Queen Aleena, but on this occasion her efforts are centered around locating Sonic who (to them) is missing. She shares this aim with Manic, Tails and to a lesser extent Cosmo.