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Augmented injection gives mammals night vision.

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

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