Will the human race adapt to not needing oxygen anymore?

Question: Will the human race adapt to not needing oxygen anymore?
- Keywords:
  human,
  oxygen,
  survival
Asked by iluvnibbley456 to Ed, Hayley, Jason, Nathan, Sophie on 14 Mar 2013.
- Hayley Evers-King answered on 14 Mar 2013:
  
  Unlikely, unless oxygen concentrations drop very slowly over millions of years….though then we’d probably have evolved in to a different species completely different to modern humans!

Question: Will the human race adapt to not needing oxygen anymore?