Vision is essential for humans, with mammals able to detect visible light between 400 and 700 nm on the electromagnetic spectrum.  In mammalian photoreceptor cells, light-absorbing pigments, consisting of opsins and retinals, are known as photon detectors. However, the detection of longer wavelength light, such as near-infrared (NIR) light, though a desirable ability, is a formidable challenge for mammals because detecting longer wavelength light, with … Continue reading Augmented injection gives mammals night vision.