photo: Jukka via flickr. Forgive the bad play on words, but one of this Sunday's episodes of Life over on our big brother Discovery Channel (that's 8pm ET by the way) is all about this planet's vast plant kingdom and all the different challenges they face: Struggling to get enough sunlight, making the most out of available water, turning carnivorous and luring animals to their doom. Here on TreeHugger though, much of our plant coverage focuses o...Read the full story on TreeHugger