The fish which shows parental care is

Options

A. Hippocamus
B. Gambusia
C. Labeo
D. Scoliodon

Answer

### Step-by-Step Solution:

1. **Understanding Parental Care in Fish**:
- Parental care in fish refers to behaviors exhibited by fish to protect and nurture their offspring. This can include guarding eggs, providing food, or carrying eggs in special pouches.

2. **Identifying Fish Species**:
- Among various fish species, some are known for exhibiting parental care. It is important to identify which species are known for this behavior.

3. **Focus on Seahorse (Hippocampus)**:
- The seahorse, scientifically known as Hippocampus, is a notable example of a fish that shows parental care. In seahorses, the male has a brood pouch where he receives eggs from the female and carries them until they hatch.

4. **Understanding the Role of the Male Seahorse**:
- The male seahorse is often referred to as the "pregnant male" because he carries the fertilized eggs in his pouch. This unique reproductive strategy highlights the level of parental care provided by this species.

5. **Eliminating Other Options**:
- Other fish mentioned, such as Gambusia and Scolidion, do not exhibit significant parental care. Gambusia is a bony fish that does not require extra parental care, while Scolidion is viviparous but does not show parental care like the seahorse.

6. **Conclusion**:
- Based on the information gathered, the fish that shows parental care is the Hippocampus (seahorse). Therefore, the correct answer is option 1.

### Final Answer:
The fish which shows parental care is **Hippocampus (seahorse)**.

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