This is a time lapse of daisies opening and orientating themselves towards the sun. It was filmed over a couple of hours and compressed down to half a minute.
In this video we are looking east. Notice how the flowers on the north side (the left of the picture) react much more dramatically than those on the southern, right, side. They have a lot of work to do in order to face the sun.
Wildflowers face the sun because the more light they catch, the more visible they are to insect pollinators, like bees and butterflies.
You might also enjoy: