FILE - In this Saturday, Oct. 22, 2011 file photo, a man holds up his pet cat during a cat show in Wuhan in central China's Hubei province. In a report released Monday, Dec. 16, 2013 by the Proceedings of the National Academy of Science, scientists say they've caught cats in the act of going through a key stage in domestication, with the evidence in 5,300-year-old bones from China. The Chinese animals are not the ancestors of today's housecats, whose family tree reaches back to domestication in the Near East instead. But the work gives support for the leading theory of just how wild animals took the first steps toward becoming our familiar pets.