Danny, i'm just experimenting with diffrent ways to animate, objects. That clip was my first attemp at track animation, pretty fun.That clip still needs a lot of work. Tail needs to sway more but most of that can be played with in the graph editor. I will model a real shark and see what fun I can have with it soon.
Thanks for the comments
I am enough of an artist to draw freely upon my imagination, knowledge is limited, imagination encircles the world. (Albert Einstein)
https://www.artstation.com/kurtb