User blog comment:Lux capacitor/Possibilities In RWBY - Animals/@comment-25291880-20141014000355

Don't know what I can say about animals and dust, but I do believe that there are other creatures besides Grimm, some like maybe our verison of cows and other types of animals that provide food to Remnant. I actually also believe that some animals like snakes and elephants only exist in Grimm form, shown in the goaliths and taijtu snakes, but then again, I could be wrong. Hope this helped.