1. Fish: Crocodiles are aquatic animals, and fish is naturally their main food source, including tilapia, grass carp and crucian carp.

2. Waterbirds: Crocodiles will also prey on waterfowl, including ducks, geese and swans. These birds live in water or near the water, so they become the prey of crocodiles.

3. Rabbits, deer and deer cubs: Crocodiles will prey on land animals, including rabbits and deer. When these animals drink water or wade, they will become the prey of crocodiles.

4. Frogs and small reptiles: Crocodiles also eat frogs and small reptiles, including lizards and snakes.

5. Small mammals: Crocodiles also prey on small mammals, including mice and squirrels. These animals will be hunted by crocodiles when they move in the water or on the shore.

6. Other small animals: In addition to the animals mentioned above, crocodiles will also prey on other small animals, including insects, crabs and shrimps.

7. Bird eggs: Crocodiles also eat bird eggs, especially waterfowl eggs, providing crocodiles with rich protein and other nutrients.

8, carrion: Crocodiles will also eat carrion, which is a survival strategy of crocodiles, carrion provides crocodiles with necessary nutrition and energy.

9. Animals: Crocodiles sometimes attack domestic animals, especially when food is in short supply.

10, Plants: Crocodiles are carnivores, but crocodiles occasionally eat plants, including fruits, vegetables or grass, but this is not the main food source of crocodiles.