We don't need to dive into the deep ocean to find the most unusual lifeforms. This short clip is a journey into a bizarre world of microscopic inhabitants of pond water.
You will see water fleas, bryozoans, water mites, mayfly nymphs, ostracods, and, of course, hydras. They jump, crawl, and float in a completely alien environment filled with mesmerizing algae and bushes of ciliates on stalks.
This video uses image that I made through a biological microscope and macro lenses. I believe that macro work added more depth and allows seeing whole animals in a more natural environment. The average size of the animals filmed was less than 1 mm.