Maximum Yield USA 2012 March | Page 124

A Plant’s Life "From the great plains of the Serengeti to your backyard or indoor garden, plants allow other creatures of every shape and size to flourish." Life is a very complex concept. We are not sure how it began, but we know that plant life has been around for hundreds of millions, maybe billions, of years. Homo sapiens—modern humans in evolutionary terms—have only been around for roughly two million years. With all this time to evolve and adapt it is no wonder that plant life has become so complex and varied. For instance, there are well over 20,000 accepted species of orchids, each requiring a specific insect to pollinate them. F