Yes, Jack crevalle are safe to eat. They are a popular game fish in the Gulf of Mexico and Caribbean Sea and can be found in waters from North Carolina to Brazil. The flesh is white, mild-tasting, and firm with large flakes that make it ideal for grilling or baking. However, due to their size and potential mercury levels, they should only be eaten occasionally as part of a balanced diet. When preparing them for consumption, it's important to remove all bones before cooking as they may contain parasites that could cause illness if ingested.