Sunflowers Track the Sun with a Hidden Clock
Young sunflowers move their heads east to west each day, following the Sun across the sky through a built-in biological timer. This motion helps them absorb more morning light, which warms their blooms and attracts more pollinators. At night they slowly reset their position, ready to greet the sunrise again.
💡 Fun detail:
Scientists discovered the plants keep this schedule even when moved into a room with constant light, showing the rhythm lives inside them.
Source: National Geographic