What do tuna fish eat?

Tuna are carnivores and eat a wide variety of fish, squid, and crustaceans. Here's a more detailed look:

* Fish: Tuna are known to eat a wide variety of fish, including sardines, mackerel, anchovies, herring, and even other tuna species.

* Squid: Squid is a major part of their diet, especially for larger tuna species.

* Crustaceans: Tuna also eat crustaceans like shrimp, crabs, and krill.

Important Note: The specific diet of a tuna species can vary depending on its size, location, and the availability of prey. Larger tuna tend to eat larger prey, and those living in different parts of the ocean may have access to different food sources.