Stem cells communicate at the molecular level – within the cell and with other cells. Stem cell scientists understand this "conversation" of cells more and more, and can begin to grasp the mysteries of the cells. This year, the German Stem Cell Network (GSCN) honors with its scientific awards three researchers - among them Barbara Treutlein and Gray Camp of the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany - who are deeply involved with cellular communication – in the development of liver cells from pluripotent stem cells, the epigenetic information in the aging process, and the regeneration processes in the axolotl.