http://www.cutestpaw.com/articles/10-most-famous-internet-cats-in-the-world/

Just look at number of views of this video.

https://www.youtube.com/watch?v=z3U0udLH974

Tardar Sauce nicknamed Grumpy Cat, has become even one of the most popular Internet memes.

What makes cats attract our attention so much? What makes cats so popular animals in the Internet ?