Agave Plant and Quid (image) Desert Research Institute Share Print E-Mail Caption This is an example of A) an agave plant (Agave utahensis var. nevadensis) photographed near Mule Spring Cave in 2016, and B) a quid before DNA extraction (this work). Credit DRI Usage Restrictions None 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.