You know how we (humans) have eyeballs? Well, owls don’t. They have eye tubes or cylinders, rod-shaped eyes that do not move in their sockets as eyeballs do. Instead, owls have to move their bodies...
Light enters your retina and is detected by photoreceptor cells, of which humans have 3 specialized kinds- rod cells, cone cells and photosensitive retinal ganglion cells. The retinal ganglion...
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