http://www.sciencefriday.com/tools/players/mediaplayer.swf
we have the company of these little friends in all terrarium mosses, if now and then you let the lid breathe.
I think these little guys are so cute! Water bears, also known as Tardigrades, live in water and are microscopic animals. They can survive in almost any kind of conditions including freezing and drying out!
(Source: http://www.sciencefriday.com/)