Thank goodness my Chow’s winter coat is in, because it was freezing this morning. The geese also seem ready to pack up and fly on their cool weather mission. The animal kingdom contains built in regulators for mating, shedding, hibernation, and much more. In the plant world, there are several in house regulators as well. One of the most fascinating plant receptors, the one which will tell your Medical Marijuana to bud out, is photoperiodism. Botanist researchers have found that it is length of darkness that influences plant growth.