Why is the polar region not a suitable habitat for tiny humming birds ?

Explanation

### Step-by-Step Solution:

1. **Understanding the Polar Regions**:
- The polar regions are characterized by extremely cold climates and are predominantly covered with ice throughout the year. This results in very low temperatures and limited availability of food resources.

2. **Characteristics of Hummingbirds**:
- Hummingbirds are small birds known for their rapid wing flapping and high metabolism. They have a relatively large surface area compared to their volume, which is a significant factor in their physiology.

...