› added 9 years ago

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TIL: the reason cats and snakes have vertical pupils is because it increases their depth perception while hunting at night while prey animals such as sheep have horizontal pupils so that they may have a panoramic view of their surroundings to watch for predators

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4ka1X TIL that the Panopticon prison design used centrally positioned guards to create the illusion of constant surveillance, ensuring low-cost control over inmates behavior
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