Food Web (IMAGE) Penn State Caption This is a sample food web with red nodes representing primary producers, orange nodes primary consumers, yellow-orange nodes omnivores, true-yellow nodes are true carnivores. This draft food web was created with the program Network3D from foodwebs.org Credit Stefani Crabtree, Penn State Usage Restrictions Non commercial use only 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.