Animals with Tracking Devices (IMAGE) Penn State Caption Animal movement studies, like those that take advantage of GPS collars and other tracking methods, would benefit from including both irregular and regular points, according to a new study. Credit bighorn sheep, Lori Iverson - USFWS/flickr; cheetah - Bernard DuPont/flicker; black carpenter ants - Hughes Lab, Penn State; blue winged warbler - Gunnar Kramer, University of Toledo Usage Restrictions Credit must be provided alongside image. 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.