The biological clock is an internal and independent mechanism that dictates daily rhythm, thus enabling an organism to gauge daily and seasonal signals and live in sync with the rhythm of nature, while maintaining timing capabilities that are essential to carrying out important physiological and behavioral processes. For corals, includes breaking down sugar and synthesizing fats, opening and closing their hunting tentacles, and more.
Click here for original story, Corals’ biological clocks can function even without the algae that nourish them
Source: Phys.org