I got news for ya,boys and girls.Dr Joseph Upton,one of the finest hand surgeons in the world,has used maggots and leeches in his practice.I used to work for him,so I know.
ain't nothing that we humans have come up with that can beat leeches'enzymes for restoring circulation and maggot's discretionary eating for removing dead tissue while leaving the healthy alone! I, for one, think it's kind of a "duh" to use organisms very well suited to such tasks instead of cruder artificial methods