Sunflowers have a circadian rhythm, which tells the cells in the eastern side of the stem to grow slightly longer, causing the blossom to lean westward, researchers say. At night, the message reverses ...

A new study by Tel Aviv University, in collaboration with the University of Colorado, Boulder, discovered that plants that grow in dense environments, where each plant casts a shadow on its neighbor, ...

The motion was subtle but unmistakable throughout Dollie’s Farm. Butterflies dipped and dove among the wildflowers. Occasional breezes stirred plots of Russian sage and coneflower. Baby peacocks ...

WASHINGTON — Young sunflowers follow the sun, their still-green buds arcing from east to west across the summer sky as dawn turns to noon turns to dusk. Each night they reverse their dance, swinging ...