Ever built a fish before? If not, you might want to give it a try in The Virtual Fishtank. After registering and logging in, you'll have access to all the tools required to build your own virtual fish and then release it into the tank where other students' fish swim free.
You'll need to be on a browser with a Shockwave plugin. If you don't have it yet, the Virtual Fishtank instructions will help you easily download it.
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