Porpoises generally eat small fish, squid, and crustaceans. Their diet varies depending on the species and their location. Here are some examples:
* Harbor porpoises: Their diet consists mainly of fish like herring, cod, and mackerel, as well as squid and crustaceans.
* Dall's porpoise: They primarily feed on squid and fish, with some variations depending on the region.
* Black porpoise: They are known to feed on squid, fish, and occasionally crustaceans.
Dolphins, on the other hand, have a broader diet that can include larger fish, sharks, rays, and even other marine mammals.
It's important to distinguish between porpoises and dolphins to understand their feeding habits.