Hans Spemann (27 June 1869 – 9 September 1941) was a German doctor. He won the 1935 Nobel Prize in Physiology or Medicine, for his discovery of the 'organizer effect' in embryonic development 
|Born||27 June 1869|
|Died||9 September 1941|
|Alma mater||University of Heidelberg|
University of Munich
|Awards||Nobel Prize in Physiology or Medicine (1935)|
|Fields||Medicine, botany and zoology|
|Institutions||University of Freiburg-im-Breisgau|
- ↑ "Biography of Hans Spemann". The Nobel Foundation. Retrieved 2009-01-05.
- ↑ "The Nobel Prize in Physiology or Medicine 1935". The Nobel Foundation. Retrieved 2009-12-21.