You can perform some xenobiological dissection on Metroids to get a little something... I also made it impossible to push, drag, or grab Metroids while they're feeding on something. Metroids also eat slower, and you can more easily "wrestle" them off by clicking on them.
git-svn-id: http://tgstation13.googlecode.com/svn/trunk@1793 316c924e-a436-60f5-8080-3fe189b3f50e