Eel has long been a beloved component of Japanese cuisine. Marinated and grilled, it is served in a donburi dish with rice or as an ingredient in sushi, where it's generally listed as "unagi," Japanese for eel. Consumption of eel has spiked with the popularity of Japanese cuisine worldwide, which has led to Japan's native eel becoming endangered due to overfishing. So, sellers have turned to the critically endangered European eel — which has been illegal to import and export for a decade. Despite that, a study has found 44% of North American eel samples were from the species. Head to the link in our bio to read more about the organized crime that may be responsible for getting it on your plate.