Kotopes is the Russian name for CatDog, the American animated series created by Peter Hannan that aired on Nickelodeon from 1998 to 2005. The show followed Cat and Dog, conjoined brothers with very different personalities who shared one body and constantly argued while trying to live a normal life. Years after it ended, clips and sounds from the series began circulating online as nostalgic references, especially among viewers who remembered its strange premise and catchy theme. That lasting recognition keeps short CatDog sounds useful for memes and throwback edits today.