<i>Myrmoteras</i> Ant (IMAGE) Smithsonian Caption A photo of a Myrmoteras ant. While at least four different groups of ants have independently evolved systems involving a latch, spring and trigger to power their fast-moving mandibles, the researchers have discovered that Myrmoteras ants' jaws work differently than those of any other known ant. In the Aug. 30 issue of the Journal of Experimental Biology, scientists at the Smithsonian's National Museum of Natural History provide the first mechanical description of the jaws of a little-known group of trap-jaw ants called Myrmoteras. Credit Steve Shattuck. Usage Restrictions News-media use of these videos and photos in relation to this study is permitted with attribution. 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.