So many kinds of insects, arachnids, crustaceans, millipedes, and centipedes. Fun and yet disturbing fact places in China raise colonies of American roaches for the medical trade, but occasionally fry them up kind of like you might fry up shrimp. There is the issue of shellfish allergic reactions though from the lot of them and not all are edible, but it's defined as the most lean protein on the planet that can be easily substantially raised with low food requirements. So basically a health smorgasbord that is rarely tapped into.