Why do birds and mammals not hibernate during winter season unlike other animals ?

Explanation

### Step-by-Step Solution:

1. **Understanding Hibernation**: Hibernation is a survival strategy used by some animals to conserve energy during the winter months when food is scarce and temperatures are low.

2. **Types of Animals**: Animals can be broadly classified into two categories: warm-blooded (endothermic) and cold-blooded (ectothermic). Birds and mammals fall under the category of warm-blooded animals.

3. **Warm-Blooded Animals**: Warm-blooded animals, such as birds and mammals, have the ability to maintain a constant internal body temperature regardless of the external environment. This means they can stay active and functional even in cold weather.

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