04:15Redesigning the Human BodyEpisode 1: A Spare Pair of Arms and Eyes in the Back of My HeadBBC Radio 4 Extra Duration: 15 minutes Tue 5th Jan 2010, 04:15 on BBC Radio 7Discovering how the body might work if we had a go at remaking ourselves, Len Fisher picks up some tips from the animal kingdom.GenresFactualScience & NatureNature & EnvironmentSeriesRedesigning the Human Body Source: BBC Online