Some andalites are remembered in andalite history. Take Seerow for example. Seerow is remembered for teaching the yeerks about andalite technology because he felt sorry for the slugs, giving them the ability to leave their pitiful home planet to take over many species in the galaxy. Alloran-Semitur-Corass is known for being the host body of Visser Three, the leader of the yeerk invasion on earth.Alloran is also the only known andalite to be a yeerk controller. Escafil was the very andalite that invented morphing technology and made the defeat of the yeerks possible.