Egg laying mammals are mostly native of

Options

A. India
B. Australia
C. Africa
D. Arabia

Answer

**Step-by-Step Solution:**

1. **Understanding Egg-Laying Mammals**:
- Egg-laying mammals are known as monotremes. They are a primitive group of mammals that lay eggs instead of giving birth to live young.

2. **Characteristics of Monotremes**:
- Monotremes share some characteristics with mammals, such as having a single bone in their lower jaw and three middle ear bones.
- They also have high metabolic rates and produce milk to nourish their young.

3. **Identifying Living Monotreme Species**:
- There are only five living species of monotremes: the duck-billed platypus and four species of echidna (also known as spiny anteaters).

4. **Geographical Distribution**:
- The native habitat of these egg-laying mammals (monotremes) is primarily Australia.

5. **Conclusion**:
- Based on the information, the answer to the question "Egg-laying mammals are mostly native of" is Australia.

**Final Answer**: Egg-laying mammals are mostly native of Australia.

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