Onthophagus taurus (IMAGE) Indiana University Caption Two Onthophagus taurus males. Armin Moczek and Debra Rose's study suggests several genes involved in making legs and antennae were co-opted to make the beetles' horns. Horns are a novel trait that is unique to horned beetles. Credit Alex Wild (http://www.myrmecos.net) 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.