Plant biology

A long time ago, I saw a Star Trek episode where the crew encountered aliens who lived at a different frequency. I may have this backwards, but I think the aliens moved so quickly that no one knew they were there. And until problems struck, our heroes were happily oblivious to the existence of the others. The Plants In Motion movies remind me of that episode. Since plant movement occurs much more slowly than movements we can easily observe, we tend to think that plants don't move. These movies prove that idea wrong. Filmed with time-lapse photography, these short movies show seeds…