When a fly is hanging upside down (like on a ceiling or something) how does it set off? Does it fly upside down for a

Question: When a fly is hanging upside down (like on a ceiling or something) how does it set off? Does it fly upside down for a while or does it turn straight over?
- Keywords:
  ceiling,
  fly,
  upside down
Asked by shaunkillo to Ed, Hayley, Jason, Nathan, Sophie on 12 Mar 2013.
- Hayley Evers-King answered on 12 Mar 2013:
  
  Apparently they do this cool little somersault thing! I’m going to have to watch closer next time!!

Question: When a fly is hanging upside down (like on a ceiling or something) how does it set off? Does it fly upside down for a while or does it turn straight over?