While gouda and mozzarella are among some of the more popular cheeses, there’s another that stands out for its special ingredient: insects.

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Casu marzu, a cheese from Sardinia, grows live bugs. While there are natives who don’t mind eating the food as is, servers generally scrape off the critters or kill them by using a paper bag.

Even though cheese scientist Michael Tunick said “it’s not really legal” to sell it for health reasons, some partake in the delicacy despite the law.

Check out Business Insider’s video, featuring Tunick, to learn more.

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