Gore

Description
When a zombie or animal is killed its body will decompose into a mesh of bloody flesh and gore. Zombie gore has 2 stages, in the first one the zombie corpse is decomposed to half of the zombie's body with its ribs showing and leaking blood as well as some bones lying around. In its second stage, all the flesh decomposes and it turns into half of a blood-covered skeleton. After that, if the corpse hasn't been cleaned up, it will decompose till there's nothing left. Animal gore has only 1 stage. Its body decomposes into a mesh of guts and organs within a rib cage, in this case if the gore block is not removed it will attract Screamers.

will biodegrade and therefore vanish automatically after a longer time.