Explain the following statement: "Fishes survive in ponds even when the atmospheric temperature is well below `0^@C`".

Explanation

To explain the statement "Fishes survive in ponds even when the atmospheric temperature is well below 0°C," we can break it down into several steps:

### Step-by-Step Solution:

1. **Understanding Water's Density and Temperature Relationship**:
- Water has a unique property where it reaches its maximum density at 4°C. As water cools down from higher temperatures, it becomes denser until it reaches 4°C. Below this temperature, water starts to expand and becomes less dense.

**Hint**: Remember that most substances become denser as they cool, but water behaves differently below 4°C.
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