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There have been several commercials and motion graphics that depict imagery breaking apart into separate objects. While this isn't a real representation of true biology, there are tricks in After Effects that will help you to split shapes to create new graphics. The easiest is the first tutorial here:
The foundry (http://www.thefoundry.co.uk) was on of the first "big" plugins I purchased for home. The reason I needed it, stars. In Tinderbox 2, Nightsky quickly rendered various star animations... Super fast. There are a dozen presets just for constellations alone. One of the bonus features for me was T_Blob.
You can render really beautiful displacement maps with it, but you can also render some nice cell division animations. Here's how. You'll need to download the demo of Tinderbox 2 before you start.
1. Create a new project with a new solid. It doesn't matter what color the solid is, we'll be using it as a placeholder for the effects only.
2. Add T_Blob from the set of Tinderbox plugins. You'll find it under Tinderbox Generators. By default, the plugin creates 6 blobs. We'll only use 2 for this demo. Twirl up the "Viewer" window, we'll only need the composition window to control the plugin's results.
3. Set the Colours pulldown to "Colour per Blob". This will make the Colour Gradient (the big colour palette) unecessary, you can twirl it up.
3A. Set the Number of blobs to "2".
4. Set the "Process Alpha" pulldown to "Yes". This will allow you to use the blobs over other layers in your composition.
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