Many mammals, especially those living in natural, wild conditions exhibit reproductive cycles only during favourable seasons in their reproductive phase and are therefore called.

Options

A. Continuous breeders
B. Seasonal breeders
C. Reflex breeders
D. Spontaneous breeders

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about mammals that exhibit reproductive cycles only during favorable seasons. This indicates that their breeding is not continuous but is limited to specific times of the year.

2. **Identifying the Options**: The options provided are:
- Continuous breeders
- Seasonal breeders
- Reflex breeders
- Spontaneous breeders

3. **Analyzing the Options**:
- **Continuous Breeders**: These are species that can reproduce at any time of the year. An example is humans. This option does not fit the description given in the question.
- **Seasonal Breeders**: These species breed only during certain seasons when conditions are favorable (e.g., temperature, food availability). This aligns perfectly with the description in the question.
- **Reflex Breeders**: This term refers to animals that show specific mating behaviors, such as lordosis, which is not directly related to the timing of their reproductive cycles.
- **Spontaneous Breeders**: This refers to animals that ovulate regularly regardless of mating behavior, which again does not fit the seasonal aspect mentioned.

4. **Conclusion**: Based on the analysis, the correct answer is **Seasonal Breeders**. These mammals, such as tigers, breed only during certain times of the year to optimize the survival of their young.

**Final Answer**: Seasonal breeders.

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