Landed Ray in Mexico (IMAGE) Duke University Caption The discovery of dozens of pregnant giant devil rays tangled in fishing nets in Mexico's Gulf of California could mean the endangered species has an unknown birthing zone there, a Duke study suggests. Credit Leo Chan Gaskins, Duke University 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.