Varmints
This animation warns people to the danger of the Earth. Varmints represent human beings, and we live and develop our technology with only thinking about ourselves. We didn't consider about the result and other effects. I think the animator want the viewer to think the way of living and realize that it directly influenced on the whole world.
Clod
This was so difficult to understand. I just guessed that the continuance of that strange events symbolize our daily life. We faced some difficulties every day, but finally, we can get over these things.