Adult Mouse Heart with Replicating Cells (IMAGE) University of Cambridge Caption Adult mouse heart after activation of both proteins vital for cell replication. Green shows cells replicating. Credit Dr Cathy Wilson, University of Cambridge Usage Restrictions With credit as above. 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.