This spider's eyes are too expensive to keep around 24/7 so God burns them out of it's stupid little spider skull every morning, bright and early, just so that it can REGROW them at night. Repeat process ad nauseam. And as always, that's not all...

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Sources:

• Taxonomy (biology) wiki

• Binomial Nomenclature wiki

• Deinopis Spinosa wiki

• Ogre Faced Spider - University of FL Featured Creatures

• Spider eye arrangement terminology -bug guide site

• How Spiders see the world - Australian Museum site

• F#, focal lens, & aperture glossary definition - Infiniti Electro Optics

• F number wiki

• How to calculate the f-stop of the human eye - popphoto

• The physiological optics of Dinopis Subrufus L.Koch: a  ...