how long will it take until we have WINGS?

Question: how long will it take until we have WINGS?
- Keywords:
  evolution,
  fly,
  time
Asked by agatha window to Angela, Claire, Ian, Robert, Sarah on 18 Nov 2014.
- Sarah Harris answered on 18 Nov 2014:
  
  A very, very long time (probably never – sorry 🙁 ). Human skeletons are rather too heavy for wings – our wing span have to be enormous to actually enable us to fly, so wings would be more of a hindrance than a help!
- Angela Stokes answered on 18 Nov 2014:
  
  Yes I have to agree with Sarah, humans will never have wings!

Question: how long will it take until we have WINGS?