Rats vision is pretty bad and is mostly based on motion. If they want to see something that isn't moving they have to move. It has to do with the receptors in their eye. I read a pretty in depth explanation somewhere but basically Pink and red eyes do it more mainly because they have no melanin in their eyes and that makes them more light sensitive. Pretty much the same with any Albino animal. It causes difficulties with focusing. So they do it more because they have a harder time with light and focusing. Rats actually don't rely very much on their vision so it calms down as their environment becomes more stable. The fewer things change the less they do it because they don't have to know everything that is around them and they are more familiar with their surroundings. Sight is more of an emergency sense for rats where smell and sound are more reliable for navigating.
Any views shared in the above post are mine and mine alone and do not necessarily reflect the views of my wife Kara (luvboyrats) or of the Nashville Rat Lady Rattery as an organization
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