I don't know much about wolfram things, but just looking through it, it appears that the manipulation and filtering is grouping the randomly generated data (I w

I don't know much about wolfram things, but just looking through it, it appears that the manipulation and filtering is grouping the randomly generated data (I would argue it's still random), taking only groups between a certain size(this is the least random part, it makes sure there are enough "features" yet not too many), and then smoothing out the groups for display (still completely dependant on the data, which was random). As the "animals" are smoothed groups of random data, (and differ every time) , I'd argue it's still (basically) random.