A mammal with social life having different castes is

Options

A. Naked Mole Rat
B. Deer
C. Elephant
D. Monkey.

Answer

To solve the question "A mammal with social life having different castes is," we can follow these steps:

### Step 1: Understand the Concept of Castes in Mammals
- Castes refer to a division of labor within a social group, where individuals have specialized roles. This is commonly seen in some social insects but can also occur in certain mammals.

### Step 2: Analyze the Given Options
- The options provided are:
1. Naked mole rat
2. Deer
3. Elephant
4. Monkey

### Step 3: Evaluate Each Option
- **Naked Mole Rat**: Known for living in colonies with a social structure that includes different castes (like workers, soldiers, and a queen).
- **Deer**: Generally do not have a caste system; they are more solitary or form loose groups.
- **Elephant**: While they are social animals, they do not have a caste system; they have matriarchal groups.
- **Monkey**: Social animals but do not exhibit a caste system in the same way as naked mole rats.

### Step 4: Identify the Correct Answer
- Based on the analysis, the naked mole rat is the only option that fits the criteria of having a social life with different castes.

### Conclusion
- The correct answer is **Naked Mole Rat**.

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