A fresh water fish which can inflict injury to its prey and other animals is

Options

A. Clarias
B. Heteropneustes
C. Solea
D. Gambusia

Answer

To solve the question about a freshwater fish that can inflict injury to its prey and other animals, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Options**: The question mentions several types of freshwater fish. We need to analyze each option to determine which one can inflict injury.

2. **Consider the First Option - Clarus**: Clarus is a genus of air-breathing catfishes. These fish are not known for inflicting harm on other animals. Therefore, this option is not correct.

3. **Examine the Second Option - Heteropinus**: Heteropinus is a type of freshwater fish that can survive in muddy waters. Importantly, these fish are known to inflict injuries on other fishes and organisms through their stings or bites. This makes Heteropinus a strong candidate for the correct answer.

4. **Look at the Third Option - Solia**: Solia, commonly known as common sole, are flat fishes. They are not known for inflicting injuries on other animals. Thus, this option is also incorrect.

5. **Analyze the Fourth Option - Gambusia**: Gambusia, also known as mosquito fish, primarily feed on mosquito larvae. They are not recognized for inflicting injuries on other animals. Therefore, this option is not correct either.

6. **Conclusion**: After evaluating all the options, it is clear that the correct answer to the question is **Heteropinus**, as it is the freshwater fish that can inflict injury to its prey and other animals.

### Final Answer:
The freshwater fish which can inflict injury to its prey and other animals is **Heteropinus**.

---