Bat (flying fox) can fly at night because

Options

A. it has strong sense of sight
B. it has strong sense of smell
C. it can hear high velocity sound waves
D. it can produce high velocity sound waves and perceive them.

Answer

To answer the question of why bats (specifically flying foxes) can fly at night, we can break down the reasoning into a few clear steps:

### Step-by-Step Solution:

1. **Understanding Nocturnal Behavior**:
- Bats, including flying foxes, are classified as nocturnal animals. This means they are active during the night and rest during the day.

2. **Need for Navigation in Darkness**:
- Since flying foxes are active at night when visibility is low, they require an effective method to navigate and find food in the dark.

3. **Echolocation Mechanism**:
- Bats utilize a biological sonar system known as echolocation. This involves producing high-frequency sound waves that bounce off objects in their environment.

4. **Sound Wave Production and Perception**:
- When bats emit these high-frequency sound waves, they listen for the echoes that return after hitting an object. By interpreting these echoes, bats can determine the distance, size, and shape of obstacles and prey.

5. **Conclusion**:
- Therefore, the ability of flying foxes to produce high-frequency sound waves and perceive the returning echoes allows them to fly and forage effectively at night. This makes option D, "it can produce high velocity sound waves and perceive them," the correct answer.

### Final Answer:
Bats (flying foxes) can fly at night because they can produce high velocity sound waves and perceive them (Option D).

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