Gestation period in human female is.......... days.

Explanation

**Step-by-Step Solution:**

1. **Understanding Gestation Period**: The gestation period refers to the time from fertilization of the egg until childbirth. It is the duration during which the fetus develops in the mother's womb.

2. **Duration in Humans**: In human females, the gestation period is approximately 280 days. This is the average time it takes for a human fetus to develop fully before birth.

3. **Comparison with Other Animals**: It is important to note that the gestation period varies among different species. For example, elephants have the longest gestation period, which is around 660 days. This variation is due to differences in the developmental processes of different organisms.

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