Yes. They have trained under Siegfried (except for Apollo who was a late addition but trained under what can be assumed to be Galleon) and have evolved into master animals.
@@Garradehiena-vh2jr the main hero is TECHNICALLY Leo but I mean, is that really a big deal? This was a decade and a half ago. Anyway, continuing this lore, the master animals (except Leo) became Animal Kaisers in strong animal Kaiser and even Brutus became one. He became one after his heroic efforts against the galactic invaders