Polish artist Marcin Ignac created these imaginary jellyfish not by copying nature but by setting up an algorithm of how a jellyfish might develop. She begins with a deformed sphere and adds some connection points which can later develop into tentacles or other features. She sets parameters such as length, and then lets the algorithm do its work. The images will be included in the project, which will produce art books -- each one unique -- from computer programs like this one.

Below, recent Pictures of the Day:

Image: Marcin Ignac.