Hmm, unfortunately that link is not related to this asset pack, and I'm not familiar with those animations. As you can see those are totally different foxes in a different style and size, made by a different artist.
This asset pack, Lil Fox, is intended to be used on its own or as a cub for my Fox Pack, but of course you are free to use it however you like! All the animations are listed in the description and most of them are showcased in the embedded youtube video.