The Worm <i>Dendrobaena octaedra</i> (IMAGE) Ohio State University Caption This small worm -- Dendrobaena octaedra, sometimes called the octagonal-tail worm -- measures less than an inch long, but the invasive species is impacting the ecology of the boreal forest in Alberta. Credit Photo courtesy of Erin Cameron, University of Alberta. Usage Restrictions None 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.