In which animal, the testes are abdominal during embryonic stages Put migrate to scrotum just before birth where they remain throughout life :

Options

A. Elephants
B. Men
C. Rats
D. Whales

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks which animal has testes that are abdominal during embryonic stages and migrate to the scrotum just before birth, where they remain throughout life.

2. **Identifying the Key Characteristics**: We need to identify an animal where:
- The testes start in the abdominal cavity during embryonic development.
- They migrate to an external pouch (the scrotum) before birth.
- The testes remain in the scrotum throughout the animal's life.

3. **Analyzing the Options**: The options provided likely include various mammals and possibly other animal groups. We need to focus on mammals, as they typically have a scrotum.

4. **Recalling Human Anatomy**: In human males, the testes are indeed located in the abdominal cavity during early embryonic development. Just before birth, they descend into the scrotum, where they remain for life.

5. **Understanding the Function of the Scrotum**: The scrotum plays a crucial role in thermoregulation. It keeps the testes at a temperature lower than the normal body temperature, which is essential for sperm production.

6. **Eliminating Other Options**:
- Animals like elephants and whales do not have external scrotal sacs.
- Other mammals may not have the same embryonic development pattern as humans.

7. **Conclusion**: Based on the analysis, the correct answer is that the animal in question is humans (option number 2).

**Final Answer**: Humans (men).

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