A maggot transforms within a pupa and a fly emerges in this Maggot to Fly Transformation video, filmed by Ammonite Films. Watch as an inflatable head sac called a ptilinum helps push the fly out of the puparium, a seemingly difficult process. But what’s happening inside the larval shell as the maggot turns into the fly? We don’t quite know the details… yet. Watch. What do you think?
via Why Evolution is True.
Related watching: more metamorphoses.