There’s herbivores, omnivores, and carnivores, but is there any category of animal life that can sustain itself on anything else that isn’t related to living organisms?
Is the only known example of this at the moment basically…Plants, give or take the particular species & how one may interpret the question of relation to other life?
I think that technically speaking, predators (most of them) also consume only the remains. They are just looking for them with their teeth, not the eyes