Have you ever wondered why you get tired when the sun goes down? Why some flower petals open during the day and close at night? Or even how monarch butterflies know when to migrate south? Life on Earth has evolved to predict what time it is. This mechanism is referred to as the circadian clock: plants and animals alike have rhythmic, biological responses to the Earth’s 24-hour and 365-day cycles using external cues like light and temperature.
Click here for original story, Researchers uncover new mechanisms regulating plant response to temperature
Source: Phys.org