I swear, this is my last entry…
This simulates the cycle of life (in a weird way).
[list=1]
[]Life starts small and grows bigger.
[]The bigger ones take out the smaller ones (survival of the fittest) and grow bigger.
[*]When you get too big, you…explode…yes…cause that’s exactly how life is. 
[/list]Not really an effect, just something interesting to watch. It’s actually kinda creepy.
http://dounanthebarb.tripod.com/Kirupa/theArtofLifeGrow.html
Here is a version with more smaller but more creatures.
http://dounanthebarb.tripod.com/Kirupa/theArtofLifeGrowSmaller.html
