Photoperiodism

Photoperiodism is a plant and animal response to the length of daily light and dark periods, influencing biological processes such as flowering, breeding, and dormancy. Organisms sense changes in day length through specialized light-sensitive tissues or cells, which then trigger hormonal or physiological changes. For example, some plants flower only when nights reach a certain duration, while certain animals use photoperiod cues to time reproduction. This adaptation helps organisms synchronize activities with seasonal conditions, ensuring survival and reproductive success in their environment.