Question
Differentiate between oestrous cycle and menstrual cycle.

Answer

Oestrous cycle
Menstrual cycle
It refers to the cyclic changes in the female reproductive system of non-primates.
It refers to the cyclic changes in the reproductive system of primate females.
There is no men struation at the end of oestrous cycle.
There is menstruation at the end of men strual cycle.
At the time of ovulation, animals show 'estrus' or 'heat' and copulation occurs only at that period.
There is no 'heat' period during ovulation and copulation occurs during any part of the cycle.

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