MRI Image of Tarantula (image) Society for Experimental Biology Share Print E-Mail Caption Scientists can color the MRI images to highlight organs. The heart is shown in lighter colors in the posterior part of the body. Credit Gavin Merrifield Usage Restrictions None Share Print E-Mail 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.