Quantum mechanics in smelling, navigation, and photosynthesis

Life is amazing. Living systems have evolved to use anything and everything in the physical world to life's advantage. Living systems embody aspects of chemistry, geometry, chemical geometry, materials, physics, mechanics, hydraulics, pneumatics, electricity, magnetism, optics, light, sound, logic, sociology, behavior, and so much more. We're now discovering that quantum mechanics may have a role in olfaction, avian navigation, and photosynthesis. Amazing.