[Fungi]

Yes. Many mushrooms are parasitic on other mushrooms. Hypomyces lactifluorum. Boletus parasiticus parasitizes the earthball Scleroderma citrinum. There are even Penicillium species parasitic on other Penicillium species!

[TigersEye]

My favorite Penicillium is roqueforti. I recently saw an article about a study that said people who eat a lot of blue cheese have less heart problems than people who don’t. I now start every day with a spoonful of Blue Cheese or Gorgonzola.

Perhaps I will be colonized by Penicillium roqueforti fungus.