Give a significant point of difference between Oestrous and Menstrual cycle.

Explanation

To answer the question about the significant point of difference between the estrous cycle and the menstrual cycle, we can break down the information as follows:

### Step-by-Step Solution:

1. **Definition of Estrous Cycle**:
- The estrous cycle occurs in non-primate animals, such as cows and dogs. It is characterized by specific phases related to reproductive readiness.

2. **Definition of Menstrual Cycle**:
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