if a familly of people and the peoples offspring live in and around water for centurys will they adapt to living in

Question: if a familly of people and the peoples offspring live in and around water for centurys will they adapt to living in water and grow gills and get webbed feet and hands?
- Keywords:
  familly,
  feet,
  gill,
  grow,
  hand,
  offspring,
  water
Asked by calvis to Mike, Pip, Tianfu, Tim, Tom on 28 Jun 2012.
- Tom Lister answered on 28 Jun 2012:
  
  As long as there is enough of a struggle that those which didn’t cope well in that environment would die out – then the family might adapt in some way to living there. This could include gills, webbed feet etc, but there may be a simpler solution as it really does take a lot of energy and a very long time to develop such things (think millions of years for gills)
  
  There may be an issue with ‘inbreeding’ if it was just one family…
- Tim Stephens answered on 28 Jun 2012:
  
  I can’t add to that.

Question: if a familly of people and the peoples offspring live in and around water for centurys will they adapt to living in water and grow gills and get webbed feet and hands?