Bears, mink, otter, human, cats, dolphins and certain whales, seals.
Herons usually don't eat small mammals, really. They prefer fish and insects over mammals.
Dolphins eat fish.
They eat fish and other aquatic sea life.
Well fo what i looked up they eat fish, crabs, and small mammals.
Birds, small mammals or other fish mostly.
Dolphins eat octopus, squid, small fish and shrimp.
earthworms, small mammals and fish
Fish, frogs, and small mammals.
No, they eat meat like small mammals and fish.
They can but they usually eat mammals like zebra, horses, or cows.
Most fish eat microorganisms and plants and such. However, some fish will eat shrimp. There are also bigger fish categories, such as sharks and whales, that will eat other fish as well as seals and other mammals.
Fish local to their surroundings, as well as small mammals like mice.