When whales and dolphins look for food, they call it 'hunting', not fishing. Different kinds of whales and dolphins eat different kinds of food.

Some dolphins and some whales eat mostly fish. Some also eat things like squid and octopuses and crabs.

Some whales don't have teeth, and they eat mostly tiny plants and animals that go through things in their mouth that are like combs. The 'combs' are called 'baleen bristles.'

The following link is about orcas, which are also called killer whales and are actually huge dolphins:

"Orca eat a large variety of foods such as fish, squid, sea lions, walruses, seals, sharks and even large whales and are considered to be at the top of the food chain in the aquatic realm since they have no real predators."

what do whales eat

Sometimes dolphins and sharks eat the same food, but when there are lots of sharks around, the dolphins don't get so much of the food.

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