Is there a pdf reader that displays animations?
You can use the Multimedia package to embed movies (mpg, mp4) in a way that you can play them in Okular. Minimal example:
\documentclass{article}
\usepackage{multimedia}
\begin{document}
\movie[height = 0.6 \textwidth,width = 1.0 \textwidth]{}{animation.mpg}
\end{document}
from Animation in PDF presentations, without Adobe Reader?