Is there animation software available?

if you mean 3d computer animation, i would suggest blender http://www.blender.org/ it is very well documented and on par with professional grade apps on windows or mac

its is available through the ubuntu software center, simply search in the searchbox for blender, then click on install

best of luck in the future

Synfig Studio is a great 2D animation program, and the best part about it is that it's free.

Synfig Studio is a free and open-source 2D animation software, designed as powerful industrial-strength solution for creating film-quality animation using a vector and bitmap artwork. It eliminates the need to create animation frame-by frame, allowing you to produce 2D animation of a higher quality with fewer people and resources. Synfig Studio is available for Windows, Linux and MacOS X.

Check it out at it's website: http://www.synfig.org/cms/