The chip hosting embryonic tissue (IMAGE) ETH Zurich Caption The chip hosting embryonic tissue in suspended drops of culture medium (in green), viewed from below. Placental cells are cultivated in the light blue area in the centre of the photograph. Credit Photograph: ETH Zurich / Julia Boos Usage Restrictions These images may be used for editorial purposes as long as the connection to ETH Zurich is clearly recognisable. Commercial use is prohibited. Published images must credit both ETH Zurich and the photographer. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.