The BBC has an article about tracking cats (from 2013), although the animation could have been better.

http://www.bbc.com/news/science-environment-22567526 (animation)

http://www.bbc.com/news/science-environment-22821639 (actual article)

The accompanying documentation can be found on YouTube: https://www.youtube.com/watch?v=JPthfv1XL_w