DNA 'Fossils' of Parasitic Nematodes in 7 Groups of Birds (image) Uppsala University Share Print E-Mail Caption The researchers found DNA 'fossils' of parasitic nematodes in seven groups of birds (clockwise): trogons, mesites, parrots, hummingbirds, hornbills, manakins, tinamous. Credit Alexander Suh and Jon Fjeldså Usage Restrictions May only be published in connection to reports about the research by Suh et al. 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.