Alien plants, a messy and quick artificial life experiment

This is an artificial evolution experiment I did some months ago. It's the product of tinkering around with the idea of implementing evolution without using a specific algorithm. It resembles a simple plant-like life form with fixed states (seed, growing, flowering and launching) with different parameters that can mutate in the new offspring. Even the mutation ratio is mutable (and you can see the porcentual value by clicking on any plant). I am not going to expand much more into the details of how the plants works as this is just a test with no much future as I have already learned what I needed from it so I can make better artificial life experiments in the future. You can feel like a exobiologist trying to figure out how this alien plants works!

Enjoy watching and trying to spot different behaviours. Be careful as some plants can develop a extremely quick growing and propagation strategy that can slow or stall your browser.

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Use mouse to look around, WASD or cursor keys to move, space to jump.
Press R to reset, or as a emergency button if the plants get out of control.

If you can spot a categorizable behaviour please explain it in the comments!
There are 3 initial seeds, two of which are identical with a medium height stem a medium growing rate, the third one have a low steam and very slow growing rate.

UPDATE (29 May 2013): There is a problem embedding the Unity web player. I will look into it to fix it.
UPDATE (25 July 2013): Problem fixed with a custom Unity "universal" loader, added R key to reset.
UPDATE (16 April 2021): New version available, check ​http://www.alejolab.com/blog/alien-plants-in-back