Un-owned Cats (image) University of Illinois at Urbana-Champaign Share Print E-Mail Caption The cats were fitted with radio collars and tracked over two years. Some of the collars also had devices that continuously monitored the cats' every move. This un-owned cat was one of those tracked. Credit Illinois Natural History Survey Usage Restrictions Photo may be used only with stories about the research described in the news release. Please credit: Illinois Natural History Survey 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.