Amphibian Swamp 
||Ancestor theories! Besides the M5 + their relatives ||
||This is just a list of who I think some G5 ponies G4 ancestors are:||
||Sprout: Big Mac is a good theory but... I saw this G4 pony named “Moody Root” that I think looks more like him. So perhaps he could be Sprout’s ancestor||
||Dahlia: Either Coco Pommel, unlikely. Or more likely, those botanist ponies, Lilly(?) and ||
||Rocky: At first I thought his ancestor could be Pound Cake but they don’t really have that much in common. Besides being tan pegasi. Maybe one of the wonderbolts or designer ponies||
||Jazz: Derpy is likely due to herlnasme. Both enamd with “Hooves” bBut they don’t have that much in common. (Unless you count the ear situation being like Derpy’s eyes) At first I did think she looked a bit like Cupcake, so perhaps her ancestors are the cakes. But I guess the spa twins are also likely||
||Windy, Alphabittle, Onyx: No idea||
||This is just a list of who I think some G5 ponies G4 ancestors are:||
||Sprout: Big Mac is a good theory but... I saw this G4 pony named “Moody Root” that I think looks more like him. So perhaps he could be Sprout’s ancestor||
||Dahlia: Either Coco Pommel, unlikely. Or more likely, those botanist ponies, Lilly(?) and
||Rocky: At first I thought his ancestor could be Pound Cake but they don’t really have that much in common. Besides being tan pegasi. Maybe one of the wonderbolts or designer ponies||
||Jazz: Derpy is likely due to her
||Windy, Alphabittle, Onyx: No idea||