Board Thread:Naruto Discussions/@comment-3568954-20150812065607

it appears that these two Otsutsuki guys bodies don't produce chakra and they can only gain chakra via those pills

so its my theory that the Kaguya clan developed a food pill technology that allowed them to mold their physical and spiritual energies together to use chakra and thats how Kaguya came to the earth.

i believe that she came to earth because her people knew that the shinju Fruit would allow her to Permanently gain the ability to mold her separate energies with out having to continue eating food pills

This would also possibly be an explanation on why she already had her Rabbit horns before eating the fruit

proof she had the rabbit horns before hand http://img3.wikia.nocookie.net/__cb20141009134824/naruto/images/7/7b/Depiction_of_Kaguya.png 