glassfrog transparency_male_flash.jpg (IMAGE) Duke University Caption a male glassfrog photographed in ventral view using a flash, showing its transparency. The team measured muscle and ventral skin and found that these tissues transmit over 90% of visible light and are still perfectly functional. These tissues are so transparent that their organs and bones can be viewed through them. Credit Jesse Delia Usage Restrictions Usage with credit License Original 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.