because they rot afterwards there organs decay time to time leaving only the body and age so your a zombie
probably a lizard of some kind with no lung or probably a disease of some kind like for example the fungus that makes animals dead but still grow and develop a virus on its body
your a rotting human or a robot because robots don't have organs and a rotting human will take ages to just be bones and because of this funguses will grow on your body which is good for nature but for people no
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Answer:
zombie
Explanation: