Powerful theories typically have extended implications, and stress theory is no exception. Taxonomists have always suspected that the visible characteristics that enable the classification of animals and plants are due to underlying physiological mechanisms, but until now nobody has ever been able to identify and describe such a mechanism. The mammalian stress mechanism is the first stress mechanism ever discovered. It implies the existence of other stress mechanisms that define the various animal classes, and explains their visible characteristics and behavior. It likewise implies similar stress mechanisms in plants. Stress theory enables a universal theory of biology that resolves the disparities of embryology, evolution, ethology, anatomy, taxonomy, Saltation, Lamarckism, the Baldwin Effect, the Cambrian Explosion, and dinosaurs. It paves the path for controlling evolution, with implications that presently reside in the realm of science fiction. For example, it will one day revolutionize farming, and enable the elimination of inherited genetic defects. It may enable new stress mechanisms that enable long-term survival on the moon and Mars.