Pronghorn with GPS Collar (IMAGE) Wildlife Conservation Society Caption In order to follow the movements of migrating pronghorn, scientists captured some 250 female pronghorn with nets deployed from helicopters and released the animals with GPS collars, each one programmed to detach after a length of time. Credit Renee Seidler/Wildlife Conservation Society. Usage Restrictions One-time usage only 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.