Categorize the animals in the following list: dogs, cats, pigs, fish
[dogs, cats, pigs, fish]
One way to categorize the animals in the list is by their habitat and physical characteristics:

- Domesticated land animals: dogs, cats, pigs
- Aquatic animals: fish
Complete the following task based on the instruction and optional input provided.### Instruction:
Categorize the animals in the following list: dogs, cats, pigs, fish

### Input:
[dogs, cats, pigs, fish]

### Output:
One way to categorize the animals in the list is by their habitat and physical characteristics:

- Domesticated land animals: dogs, cats, pigs
- Aquatic animals: fish