Percentage of water in animals varies from ______ to ______.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the range of percentage of water found in animals.

2. **Identifying Key Information**: According to the information provided in the video transcript, the percentage of water in animals varies based on several factors including age, gender, and weight.

3. **Finding the Range**: The transcript states that the percentage of water in animal bodies ranges from 70% to 90%.

4. **Final Answer**: Therefore, the percentage of water in animals varies from **70% to 90%**.

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