Lipid Stain (IMAGE) University of California - Berkeley Caption Researchers used a red lipid stain to reveal regions of brown fat in mice. Shown on the left are cells from a mouse in the control group with normal levels of brown fat. The image on the right was taken from a mouse with the protein Zfp516 disabled, showing almost no brown fat development. Credit Photo by Jon Dempersmier Usage Restrictions All rights reserved 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.