Spot out the zone of our country considered as the hot spot of biodiversity and regarded as the 'Cradle of Speciation'.

Options

A. Western Ghats
B. North East
C. Himalayan base
D. Deccan plateau

Answer

### Step-by-Step Solution:

1. **Identify the Question**: The question asks for a specific zone in India that is recognized as a hotspot of biodiversity and is also referred to as the 'Cradle of Speciation'.

2. **Define Key Terms**:
- **Biodiversity Hotspot**: An area that is rich in biodiversity, meaning it has a high number of different species.
- **Cradle of Speciation**: A region where a significant amount of new species have evolved.

3. **Identify the Regions**:
- The two main regions in India that are considered biodiversity hotspots and cradles of speciation are:
- **Western Ghats**
- **Indo-Burma**

4. **Focus on the Western Ghats**:
- The Western Ghats are a mountain range that runs parallel to the western coast of India.
- This region is known for its rich biodiversity, including a variety of flora and fauna.

5. **Provide Specific Biodiversity Data**:
- The Western Ghats host:
- 7,402 flowering plant species
- 1,814 known flowering species
- 508 bird species
- 179 amphibian species
- 290 fish species
- 6,000 insect species

6. **Conclusion**: The Western Ghats are considered a biodiversity hotspot and the 'Cradle of Speciation' due to the high variety of species present in this region.

### Final Answer:
The zone of our country considered as the hotspot of biodiversity and regarded as the 'Cradle of Speciation' is the **Western Ghats**.