You cannot send them*, Instead you must load the same animation on all clients and use a Remote to start it playing.
*if the animation is for a player character. If the animation player is owned by the server, it is enough to load the animation also on the server and play it from there, according to this:
I was told that playing animations on the server is bad. And causes lag on the server. So thats why I want to do this on the client. You are saying I just have to load the animation on the client? and then play it there?