Add Yahoo as a preferred source to see more of our stories on Google. A sunflower field against a blue sky - Vlad Ispas/Shutterstock Few flowers capture the essence of summer quite like the sunflower ...

TEL AVIV-YAFO, Israel — Sunflowers really do “dance” as they grow so as not to block solar rays from each other, reveals new research. The study sheds light on a scientific puzzle that has occupied ...