Biofuel Tech Found in Poop (IMAGE) DOE/Pacific Northwest National Laboratory Caption Fungi found in the guts of goats, horses and sheep help them digest stubborn plant material. A team of researchers report in the journal Science that these fungi could potentially lead to cheaper biofuel and bio-based products. Credit Daniele Faieta/Flickr Usage Restrictions Image available on Flickr under a Creative Commons license: Attribution-NoDerivs 2.0 Generic. Please credit Daniele Faieta. 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.