Tusalava is a beautiful, abstract animation by Len Lye (1901-1980). Lye was a New Zealand artist known for his films and kinetic sculptures. Tusalva is all black-and-white, and features moving formations that remind me of microbes, or alien lifeforms. Although it's abstract, there is a super compelling sci-fi look to this video. Lye had a unique vision which comes through in both his video and his sculpture work.
From the YouTube description:
Len Lye's great animated film. The sound track got lost, so I wrote this one a few years ago.If you do your own soundtrack please let me know and I'll link to it